{"id":6604,"date":"2025-12-15T11:01:16","date_gmt":"2025-12-15T11:01:16","guid":{"rendered":"https:\/\/www.pishrochem.com\/blog\/?p=6604"},"modified":"2025-12-15T11:01:43","modified_gmt":"2025-12-15T11:01:43","slug":"%d8%a7%d9%84%d9%85%d8%b6%d8%a7%d9%81%d8%a7%d8%aa-%d9%88%d8%aa%d8%b7%d8%a8%d9%8a%d9%82%d8%a7%d8%aa-%d8%a8%d9%88%d9%84%d9%8a-%d9%81%d9%8a%d9%86%d9%8a%d9%84-%d9%83%d9%84%d9%88%d8%b1%d9%8a%d8%af-pvc","status":"publish","type":"post","link":"https:\/\/www.pishrochem.com\/blog\/ar\/%d8%a7%d9%84%d9%85%d8%b6%d8%a7%d9%81%d8%a7%d8%aa-%d9%88%d8%aa%d8%b7%d8%a8%d9%8a%d9%82%d8%a7%d8%aa-%d8%a8%d9%88%d9%84%d9%8a-%d9%81%d9%8a%d9%86%d9%8a%d9%84-%d9%83%d9%84%d9%88%d8%b1%d9%8a%d8%af-pvc\/","title":{"rendered":"\u0627\u0644\u0645\u0636\u0627\u0641\u0627\u062a \u0648\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0628\u0648\u0644\u064a \u0641\u064a\u0646\u064a\u0644 \u0643\u0644\u0648\u0631\u064a\u062f (PVC)"},"content":{"rendered":"\n<p class=\"has-text-align-right\">\u064a\u064f\u0639\u062f \u0628\u0648\u0644\u064a \u0641\u064a\u0646\u064a\u0644 \u0643\u0644\u0648\u0631\u064a\u062f (<a href=\"https:\/\/www.pishrochem.com\/ar\">Polyvinyl Chloride \u2013 PVC<\/a>) \u0648\u0627\u062d\u062f\u064b\u0627 \u0645\u0646 \u0623\u0647\u0645 \u0627\u0644\u0628\u0648\u0644\u064a\u0645\u0631\u0627\u062a \u0627\u0644\u0644\u062f\u0646\u0629 \u062d\u0631\u0627\u0631\u064a\u064b\u0627 \u0641\u064a \u0635\u0646\u0627\u0639\u0629 \u0627\u0644\u0628\u0644\u0627\u0633\u062a\u064a\u0643. \u064a\u062a\u0645\u064a\u0632 PVC \u0627\u0644\u0646\u0642\u064a \u0628\u0644\u0648\u0646\u0647 \u0627\u0644\u0623\u0628\u064a\u0636 \u0648\u0635\u0644\u0627\u0628\u062a\u0647 \u0648\u0647\u0634\u0627\u0634\u062a\u0647. \u0648\u064a\u064f\u0635\u0646\u064e\u0651\u0641 \u0628\u0639\u062f \u0627\u0644\u0628\u0648\u0644\u064a \u0625\u064a\u062b\u064a\u0644\u064a\u0646 (PE) \u0648\u0627\u0644\u0628\u0648\u0644\u064a \u0628\u0631\u0648\u0628\u064a\u0644\u064a\u0646 (PP) \u0643\u062b\u0627\u0644\u062b \u0623\u0643\u062b\u0631 \u0627\u0644\u0628\u0648\u0644\u064a\u0645\u0631\u0627\u062a \u0627\u0633\u062a\u062e\u062f\u0627\u0645\u064b\u0627 \u0641\u064a \u0627\u0644\u0639\u0627\u0644\u0645\u060c \u062d\u064a\u062b \u064a\u0628\u0644\u063a \u0627\u0644\u0625\u0646\u062a\u0627\u062c \u0627\u0644\u0639\u0627\u0644\u0645\u064a \u0627\u0644\u0633\u0646\u0648\u064a \u0645\u0646\u0647 \u062d\u0648\u0627\u0644\u064a 40 \u0645\u0644\u064a\u0648\u0646 \u0637\u0646. \u0627\u0644\u0635\u064a\u063a\u0629 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u0644\u0628\u0648\u0644\u064a \u0641\u064a\u0646\u064a\u0644 \u0643\u0644\u0648\u0631\u064a\u062f \u0647\u064a (C\u2082H\u2083Cl)\u2099\u060c \u0648\u064a\u062a\u0645 \u0625\u0646\u062a\u0627\u062c\u0647 \u0645\u0646 \u062e\u0644\u0627\u0644 \u0628\u0644\u0645\u0631\u0629 \u0645\u0648\u0646\u0648\u0645\u0631 \u0643\u0644\u0648\u0631\u064a\u062f \u0627\u0644\u0641\u064a\u0646\u064a\u0644 (VCM). \u064a\u062a\u0631\u0627\u0648\u062d \u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u0644\u0645\u0631\u0629 \u0639\u0627\u062f\u0629\u064b \u0628\u064a\u0646 300 \u06481500. \u0648\u064a\u0633\u0627\u0647\u0645 \u0648\u062c\u0648\u062f \u062d\u0648\u0627\u0644\u064a 57\u066a \u0628\u0627\u0644\u0648\u0632\u0646 \u0645\u0646 \u0627\u0644\u0643\u0644\u0648\u0631 \u0641\u064a \u062a\u0631\u0643\u064a\u0628\u0629 PVC \u0641\u064a \u062a\u0642\u0644\u064a\u0644 \u0627\u0639\u062a\u0645\u0627\u062f\u0647 \u0639\u0644\u0649 \u0627\u0644\u0645\u0648\u0627\u0631\u062f \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0643<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-right\"> \u0627\u0644\u0645\u0642\u062f\u0645\u0629<\/h3>\n\n\n\n<p class=\"has-text-align-right\">\u064a\u064f\u0642\u0633\u064e\u0651\u0645 PVC \u0625\u0644\u0649 \u0646\u0648\u0639\u064a\u0646 \u0631\u0626\u064a\u0633\u064a\u064a\u0646: PVC \u0627\u0644\u0635\u0644\u0628 (Rigid PVC \u0623\u0648 uPVC) \u0648PVC \u0627\u0644\u0645\u0631\u0646 (Flexible PVC). \u0644\u0627 \u064a\u062d\u062a\u0648\u064a PVC \u0627\u0644\u0635\u0644\u0628 \u0639\u0644\u0649 \u0645\u0644\u062f\u0646\u0627\u062a\u060c \u0648\u064a\u064f\u0633\u062a\u062e\u062f\u0645 \u0639\u0644\u0649 \u0646\u0637\u0627\u0642 \u0648\u0627\u0633\u0639 \u0641\u064a \u0642\u0637\u0627\u0639 \u0627\u0644\u0628\u0646\u0627\u0621\u060c \u062e\u0627\u0635\u0629\u064b \u0641\u064a \u0625\u0646\u062a\u0627\u062c \u0623\u0646\u0627\u0628\u064a\u0628 PVC\u060c \u0648\u0627\u0644\u0628\u0631\u0648\u0641\u064a\u0644\u0627\u062a\u060c \u0648\u0627\u0644\u0623\u0644\u0648\u0627\u062d\u060c \u0648\u0627\u0644\u0635\u0641\u0627\u0626\u062d. \u0623\u0645\u0627 PVC \u0627\u0644\u0645\u0631\u0646 \u0641\u064a\u062a\u0645 \u0627\u0644\u062d\u0635\u0648\u0644 \u0639\u0644\u064a\u0647 \u0628\u0625\u0636\u0627\u0641\u0629 \u0645\u0644\u062f\u0646\u0627\u062a PVC \u0625\u0644\u0649 \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u0635\u0644\u0628\u060c \u0648\u0628\u0641\u0636\u0644 \u0645\u0631\u0648\u0646\u062a\u0647 \u0627\u0644\u0639\u0627\u0644\u064a\u0629 \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0643\u0648\u0646 \u0628\u062f\u064a\u0644\u064b\u0627 \u0645\u0646\u0627\u0633\u0628\u064b\u0627 \u0644\u0644\u0645\u0637\u0627\u0637. \u0648\u062a\u0634\u0645\u0644 \u062a\u0637\u0628\u064a\u0642\u0627\u062a PVC \u0627\u0644\u0645\u0631\u0646 \u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0633\u0628\u0627\u0643\u0629\u060c \u0648\u0639\u0632\u0644 \u0627\u0644\u0643\u0627\u0628\u0644\u0627\u062a \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629\u060c \u0648\u0627\u0644\u062c\u0644\u0648\u062f \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629 \u0645\u0646 PVC\u060c \u0648\u0623\u0631\u0636\u064a\u0627\u062a PVC\u060c \u0648\u0627\u0644\u062e\u0631\u0627\u0637\u064a\u0645 \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629.<\/p>\n\n\n\n<p class=\"has-text-align-right\">\u064a\u064f\u0639\u062f \u0628\u0648\u0644\u064a \u0641\u064a\u0646\u064a\u0644 \u0643\u0644\u0648\u0631\u064a\u062f \u0628\u0648\u0644\u064a\u0645\u0631\u064b\u0627 \u0644\u062f\u0646\u064b\u0627 \u062d\u0631\u0627\u0631\u064a\u064b\u0627 \u0645\u0646\u062e\u0641\u0636 \u0627\u0644\u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u0627\u0644\u062d\u0631\u0627\u0631\u064a \u0646\u0633\u0628\u064a\u064b\u0627\u060c \u0648\u0644\u0630\u0644\u0643 \u0641\u0625\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0625\u0636\u0627\u0641\u0627\u062a PVC \u064a\u064f\u0639\u062f \u0636\u0631\u0648\u0631\u064a\u064b\u0627 \u0644\u062a\u062d\u0633\u064a\u0646 \u062e\u0648\u0627\u0635\u0647 \u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0629 \u0648\u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629 \u0648\u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629. \u064a\u062a\u0639\u0631\u0636 PVC \u063a\u064a\u0631 \u0627\u0644\u0645\u0639\u062f\u0644 \u0644\u0644\u062a\u062d\u0644\u0644 \u0627\u0644\u062d\u0631\u0627\u0631\u064a \u0639\u0646\u062f \u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0645\u0631\u062a\u0641\u0639\u0629\u060c \u0645\u0645\u0627 \u064a\u0624\u062f\u064a \u0625\u0644\u0649 \u0627\u0646\u0628\u0639\u0627\u062b \u063a\u0627\u0632 \u0643\u0644\u0648\u0631\u064a\u062f \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u062c\u064a\u0646 (HCl) \u0627\u0644\u0630\u064a \u064a\u0633\u0631\u0651\u0639 \u0645\u0646 \u0639\u0645\u0644\u064a\u0629 \u0627\u0644\u062a\u062d\u0644\u0644. \u0648\u0644\u0647\u0630\u0627 \u0627\u0644\u0633\u0628\u0628\u060c \u064a\u062a\u0645 \u062a\u0639\u062f\u064a\u0644 PVC \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0625\u0636\u0627\u0641\u0627\u062a \u0645\u062b\u0644 \u0645\u062b\u0628\u062a\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0644\u0640 PVC\u060c \u0648\u0627\u0644\u0645\u0648\u0627\u062f \u0627\u0644\u0645\u0632\u0644\u0650\u0651\u0642\u0629\u060c \u0648\u0627\u0644\u062d\u0634\u0648\u0627\u062a\u060c \u0648\u0645\u062d\u0633\u0651\u0646\u0627\u062a \u0627\u0644\u0635\u062f\u0645\u0629 \u0644\u0640 PVC\u060c \u0648\u0627\u0644\u0623\u0635\u0628\u0627\u063a\u060c \u0648\u0627\u0644\u0645\u0644\u062f\u0646\u0627\u062a. \u0648\u062a\u0644\u0639\u0628 \u0647\u0630\u0647 \u0627\u0644\u0625\u0636\u0627\u0641\u0627\u062a \u062f\u0648\u0631\u064b\u0627 \u0645\u062d\u0648\u0631\u064a\u064b\u0627 \u0641\u064a \u0639\u0645\u0644\u064a\u0629 \u062a\u062d\u0636\u064a\u0631 \u0645\u0631\u0643\u0628\u0627\u062a PVC.<\/p>\n\n\n\n<p class=\"has-text-align-right\">\u062a\u064f\u0635\u0646\u064e\u0651\u0641 \u0631\u0627\u062a\u0646\u062c\u0627\u062a PVC \u0648\u0641\u0642\u064b\u0627 \u0644\u0642\u064a\u0645\u0629 K (K-Value)\u060c \u0648\u0627\u0644\u062a\u064a \u062a\u0639\u0628\u0651\u0631 \u0639\u0646 \u0627\u0644\u0648\u0632\u0646 \u0627\u0644\u062c\u0632\u064a\u0626\u064a \u0648\u062f\u0631\u062c\u0629 \u0627\u0644\u0628\u0644\u0645\u0631\u0629. \u064a\u062a\u0645\u064a\u0632 PVC \u0630\u0648 \u0642\u064a\u0645\u0629 K = 57 \u0628\u0648\u0632\u0646 \u062c\u0632\u064a\u0626\u064a \u0645\u0646\u062e\u0641\u0636 \u0648\u064a\u064f\u0633\u062a\u062e\u062f\u0645 \u0641\u064a \u0623\u0641\u0644\u0627\u0645 \u0627\u0644\u062a\u063a\u0644\u064a\u0641\u060c \u0648\u0627\u0644\u0635\u0641\u0627\u0626\u062d \u0627\u0644\u0645\u0646\u0641\u0648\u062e\u0629\u060c \u0648\u0627\u0644\u0632\u062c\u0627\u062c\u0627\u062a\u060c \u0648\u0642\u0637\u0639 \u0627\u0644\u0642\u0648\u0644\u0628\u0629 \u0628\u0627\u0644\u062d\u0642\u0646. \u0623\u0645\u0627 PVC \u0630\u0648 \u0642\u064a\u0645\u0629 K \u0628\u064a\u0646 70 \u064875 \u0641\u064a\u062a\u0645\u064a\u0632 \u0628\u0642\u0648\u0629 \u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0629 \u0623\u0639\u0644\u0649\u060c \u0625\u0644\u0627 \u0623\u0646 \u0645\u0639\u0627\u0644\u062c\u062a\u0647 \u062a\u0643\u0648\u0646 \u0623\u0643\u062b\u0631 \u0635\u0639\u0648\u0628\u0629\u060c \u0648\u064a\u064f\u0633\u062a\u062e\u062f\u0645 \u0641\u064a \u0625\u0646\u062a\u0627\u062c \u0623\u0646\u0627\u0628\u064a\u0628 PVC\u060c \u0648\u0627\u0644\u0628\u0631\u0648\u0641\u064a\u0644\u0627\u062a \u0627\u0644\u0625\u0646\u0634\u0627\u0626\u064a\u0629\u060c \u0648\u0643\u0627\u0628\u0644\u0627\u062a \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0621 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0623\u062f\u0627\u0621\u060c \u0648\u0623\u0631\u0636\u064a\u0627\u062a PVC \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629. \u0643\u0645\u0627 \u064a\u064f\u0633\u062a\u062e\u062f\u0645 PVC \u0627\u0644\u0645\u0633\u062a\u062d\u0644\u0628 \u0639\u0644\u0649 \u0634\u0643\u0644 \u0628\u0644\u0627\u0633\u062a\u064a\u0633\u0648\u0644 PVC \u0623\u0648 \u0644\u0627\u062a\u0643\u0633 PVC \u0641\u064a \u0627\u0644\u0637\u0644\u0627\u0621\u0627\u062a\u060c \u0648\u0627\u0644\u0623\u0641\u0644\u0627\u0645 \u0645\u062a\u0639\u062f\u062f\u0629 \u0627\u0644\u0637\u0628\u0642\u0627\u062a\u060c \u0648\u0641\u0648\u0627\u0635\u0644 \u0627\u0644\u0628\u0637\u0627\u0631\u064a\u0627\u062a.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-right\">\u0627\u0644\u0645\u0648\u0627\u062f \u0648\u0627\u0644\u0637\u0631\u0642 (\u0627\u0644\u0645\u0636\u0627\u0641\u0627\u062a \u0648\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0628\u0648\u0644\u064a \u0641\u064a\u0646\u064a\u0644 \u0643\u0644\u0648\u0631\u064a\u062f PVC)<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"has-text-align-right\">2.1. \u0627\u0644\u062e\u0644\u0637 \u0627\u0644\u062c\u0627\u0641 \u0644\u0640 <a href=\"https:\/\/www.pishrochem.com\/ar\">PVC<\/a><\/p>\n\n\n\n<p class=\"has-text-align-right\">\u0641\u064a \u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u062e\u0644\u0637 \u0627\u0644\u062c\u0627\u0641 (Dry Blend)\u060c \u064a\u062a\u0645 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u062e\u0644\u0627\u0637\u0627\u062a \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0633\u0631\u0639\u0629 \u0644\u062e\u0644\u0637 \u0631\u0627\u062a\u0646\u062c PVC \u0645\u0639 \u0627\u0644\u0625\u0636\u0627\u0641\u0627\u062a \u0627\u0644\u0628\u0648\u0644\u064a\u0645\u0631\u064a\u0629 \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629 \u0628\u0634\u0643\u0644 \u0645\u062a\u062c\u0627\u0646\u0633 \u0644\u0644\u062d\u0635\u0648\u0644 \u0639\u0644\u0649 \u0645\u0633\u062d\u0648\u0642 \u0645\u0648\u062d\u062f. \u0648\u062a\u064f\u0639\u062f \u0647\u0630\u0647 \u0627\u0644\u0637\u0631\u064a\u0642\u0629 \u0634\u0627\u0626\u0639\u0629 \u062c\u062f\u064b\u0627 \u0641\u064a \u0625\u0646\u062a\u0627\u062c \u0645\u0631\u0643\u0628\u0627\u062a PVC.<\/p>\n\n\n\n<p class=\"has-text-align-right\">2.2. \u0627\u0644\u062e\u0644\u0637 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0625\u0643\u0633\u062a\u0631\u0648\u062f\u0631<\/p>\n\n\n\n<p class=\"has-text-align-right\">\u0641\u064a \u0639\u0645\u0644\u064a\u0629 \u0628\u062b\u0642 PVC\u060c \u064a\u062a\u0645 \u0625\u062f\u062e\u0627\u0644 \u0627\u0644\u0645\u0648\u0627\u062f \u0627\u0644\u062e\u0627\u0645 \u0625\u0644\u0649 \u062c\u0647\u0627\u0632 \u0627\u0644\u0625\u0643\u0633\u062a\u0631\u0648\u062f\u0631 \u062d\u064a\u062b \u062a\u0646\u0635\u0647\u0631 \u0648\u062a\u064f\u062e\u0644\u0637. \u0648\u0628\u0639\u062f \u0627\u0644\u0645\u0631\u0648\u0631 \u0628\u0645\u0646\u0627\u0637\u0642 \u0627\u0644\u062a\u0633\u062e\u064a\u0646 \u0648\u0627\u0644\u062a\u0628\u0631\u064a\u062f \u0627\u0644\u0644\u0627\u062d\u0642\u060c \u064a\u062a\u0645 \u062a\u0642\u0637\u064a\u0639 \u0627\u0644\u0645\u0627\u062f\u0629 \u0625\u0644\u0649 \u062d\u0628\u064a\u0628\u0627\u062a PVC \u062c\u0627\u0647\u0632\u0629 \u0644\u0639\u0645\u0644\u064a\u0627\u062a \u0644\u0627\u062d\u0642\u0629 \u0645\u062b\u0644 \u0627\u0644\u0642\u0648\u0644\u0628\u0629 \u0628\u0627\u0644\u062d\u0642\u0646 \u0623\u0648 \u0627\u0644\u0642\u0648\u0644\u0628\u0629 \u0628\u0627\u0644\u0646\u0641\u062e.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-right\">\u0625\u0636\u0627\u0641\u0627\u062a PVC<\/h2>\n\n\n\n<p class=\"has-text-align-right\">3.1. \u0645\u0644\u062f\u0646\u0627\u062a PVC<\/p>\n\n\n\n<p class=\"has-text-align-right\">\u062a\u064f\u0639\u062f \u0627\u0644\u0645\u0644\u062f\u0646\u0627\u062a \u0645\u0646 \u0623\u0647\u0645 \u0625\u0636\u0627\u0641\u0627\u062a PVC \u0627\u0644\u0645\u0631\u0646\u060c \u062d\u064a\u062b \u062a\u0624\u062f\u064a \u0625\u0636\u0627\u0641\u062a\u0647\u0627 \u0625\u0644\u0649 \u0632\u064a\u0627\u062f\u0629 \u0627\u0644\u0645\u0631\u0648\u0646\u0629\u060c \u0648\u062a\u0642\u0644\u064a\u0644 \u0627\u0644\u0635\u0644\u0627\u0628\u0629\u060c \u0648\u062a\u062d\u0633\u064a\u0646 \u0642\u0627\u0628\u0644\u064a\u0629 \u0627\u0644\u0645\u0639\u0627\u0644\u062c\u0629.<\/p>\n\n\n\n<p class=\"has-text-align-right\">3.1.1. \u0627\u0644\u0645\u0644\u062f\u0646\u0627\u062a \u0627\u0644\u0623\u0648\u0644\u064a\u0629<\/p>\n\n\n\n<p class=\"has-text-align-right\">\u062a\u062a\u0645\u064a\u0651\u0632 \u0627\u0644\u0645\u0644\u062f\u0646\u0627\u062a \u0627\u0644\u0623\u0648\u0644\u064a\u0629 \u0644\u0640 PVC \u0645\u062b\u0644 \u062b\u0646\u0627\u0626\u064a \u0623\u0648\u0643\u062a\u064a\u0644 \u0641\u062b\u0627\u0644\u0627\u062a (DOP) \u0628\u062a\u0648\u0627\u0641\u0642 \u0645\u0645\u062a\u0627\u0632 \u0645\u0639 \u0631\u0627\u062a\u0646\u062c PVC\u060c \u0648\u062a\u064f\u0633\u062a\u062e\u062f\u0645 \u0639\u0644\u0649 \u0646\u0637\u0627\u0642 \u0648\u0627\u0633\u0639 \u0641\u064a \u0625\u0646\u062a\u0627\u062c \u0627\u0644\u0645\u0646\u062a\u062c\u0627\u062a \u0634\u062f\u064a\u062f\u0629 \u0627\u0644\u0645\u0631\u0648\u0646\u0629 \u0645\u062b\u0644 \u0627\u0644\u062e\u0631\u0627\u0637\u064a\u0645\u060c \u0648\u0643\u0627\u0628\u0644\u0627\u062a \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0621\u060c \u0648\u0645\u0646\u062a\u062c\u0627\u062a PVC \u0627\u0644\u0637\u0628\u064a\u0629.<\/p>\n\n\n\n<p class=\"has-text-align-right\">3.1.2. \u0627\u0644\u0645\u0644\u062f\u0646\u0627\u062a \u0627\u0644\u062b\u0627\u0646\u0648\u064a\u0629<\/p>\n\n\n\n<p class=\"has-text-align-right\">\u062a\u064f\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u0645\u0644\u062f\u0646\u0627\u062a \u0627\u0644\u062b\u0627\u0646\u0648\u064a\u0629 \u0645\u062b\u0644 \u0634\u0645\u0639 \u0627\u0644\u0628\u0631\u0627\u0641\u064a\u0646 \u0627\u0644\u0645\u0643\u0644\u0648\u0631 (CPW) \u0628\u0634\u0643\u0644 \u0623\u0633\u0627\u0633\u064a \u0644\u062a\u0642\u0644\u064a\u0644 \u062a\u0643\u0644\u0641\u0629 \u0645\u0631\u0643\u0628\u0627\u062a PVC\u060c \u0648\u0644\u0647\u0627 \u062f\u0648\u0631 \u0627\u0642\u062a\u0635\u0627\u062f\u064a \u0645\u0647\u0645 \u0641\u064a \u062a\u0631\u0643\u064a\u0628\u0627\u062a PVC.<\/p>\n\n\n\n<p class=\"has-text-align-right\">3.1.3. \u0627\u0644\u0645\u0644\u062f\u0646\u0627\u062a \u0641\u064a \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0637\u0628\u064a\u0629<\/p>\n\n\n\n<p class=\"has-text-align-right\">\u0641\u064a \u0627\u0644\u0645\u062c\u0627\u0644 \u0627\u0644\u0637\u0628\u064a\u060c \u062a\u064f\u0633\u062a\u062e\u062f\u0645 \u0645\u0644\u062f\u0646\u0627\u062a PVC \u0627\u0644\u0637\u0628\u064a\u0629 \u0645\u062b\u0644 DOP \u0648TOTM \u0648BTHC \u0648DnDP \u0641\u064a \u062a\u0635\u0646\u064a\u0639 \u0623\u0643\u064a\u0627\u0633 \u0627\u0644\u062f\u0645\u060c \u0648\u0645\u062c\u0645\u0648\u0639\u0627\u062a \u0627\u0644\u0645\u062d\u0627\u0644\u064a\u0644 \u0627\u0644\u0648\u0631\u064a\u062f\u064a\u0629\u060c \u0648\u0623\u0646\u0627\u0628\u064a\u0628 PVC \u0627\u0644\u0637\u0628\u064a\u0629.<\/p>\n\n\n\n<p class=\"has-text-align-right\">3.2. \u0645\u062b\u0628\u062a\u0627\u062a PVC<\/p>\n\n\n\n<p class=\"has-text-align-right\">\u062a\u064f\u0639\u062f \u0645\u062b\u0628\u062a\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0644\u0640 PVC \u0648\u0645\u062b\u0628\u062a\u0627\u062a \u0627\u0644\u0636\u0648\u0621 \u0636\u0631\u0648\u0631\u064a\u0629 \u0644\u0645\u0646\u0639 \u0627\u0644\u062a\u062d\u0644\u0644 \u0627\u0644\u062d\u0631\u0627\u0631\u064a \u0648\u0627\u0644\u062a\u062d\u0644\u0644 \u0627\u0644\u0646\u0627\u062a\u062c \u0639\u0646 \u0627\u0644\u0623\u0634\u0639\u0629 \u0641\u0648\u0642 \u0627\u0644\u0628\u0646\u0641\u0633\u062c\u064a\u0629 \u0644\u0628\u0648\u0644\u064a \u0641\u064a\u0646\u064a\u0644 \u0643\u0644\u0648\u0631\u064a\u062f \u0623\u062b\u0646\u0627\u0621 \u0627\u0644\u0645\u0639\u0627\u0644\u062c\u0629 \u0648\u062e\u0644\u0627\u0644 \u0641\u062a\u0631\u0629 \u0627\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645.<\/p>\n\n\n\n<p class=\"has-text-align-right\">3.3. \u062d\u0634\u0648\u0627\u062a PVC<\/p>\n\n\n\n<p class=\"has-text-align-right\">\u062a\u064f\u0633\u062a\u062e\u062f\u0645 \u062d\u0634\u0648\u0627\u062a PVC \u0645\u062b\u0644 \u0643\u0631\u0628\u0648\u0646\u0627\u062a \u0627\u0644\u0643\u0627\u0644\u0633\u064a\u0648\u0645\u060c \u0648\u062b\u0627\u0646\u064a \u0623\u0643\u0633\u064a\u062f \u0627\u0644\u062a\u064a\u062a\u0627\u0646\u064a\u0648\u0645 (TiO\u2082)\u060c \u0648\u0627\u0644\u062a\u0627\u0644\u0643\u060c \u0648\u0627\u0644\u062d\u0634\u0648\u0627\u062a \u0627\u0644\u0646\u0627\u0646\u0648\u064a\u0629 \u0644\u062a\u0642\u0644\u064a\u0644 \u0627\u0644\u062a\u0643\u0644\u0641\u0629 \u0648\u062a\u062d\u0633\u064a\u0646 \u0627\u0644\u062e\u0648\u0627\u0635 \u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0629 \u0644\u0640 PVC.<\/p>\n\n\n\n<p class=\"has-text-align-right\">3.4. \u0645\u062d\u0633\u0651\u0646\u0627\u062a \u0627\u0644\u0635\u062f\u0645\u0629 \u0644\u0640 PVC<\/p>\n\n\n\n<p class=\"has-text-align-right\">\u062a\u064f\u0636\u0627\u0641 \u0645\u062d\u0633\u0651\u0646\u0627\u062a \u0627\u0644\u0635\u062f\u0645\u0629 \u0644\u0640 PVC \u0645\u062b\u0644 ABS \u0648CPE \u0625\u0644\u0649 \u062a\u0631\u0643\u064a\u0628\u0627\u062a PVC \u0627\u0644\u0635\u0644\u0628 \u0644\u0632\u064a\u0627\u062f\u0629 \u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u0635\u062f\u0645\u0627\u062a \u0648\u0627\u0644\u0645\u062a\u0627\u0646\u0629 \u0628\u0634\u0643\u0644 \u0645\u0644\u062d\u0648\u0638.<\/p>\n\n\n\n<p class=\"has-text-align-right\">3.5. \u0623\u0635\u0628\u0627\u063a PVC<\/p>\n\n\n\n<p class=\"has-text-align-right\">\u064a\u062c\u0628 \u0623\u0646 \u062a\u062a\u0645\u062a\u0639 \u0623\u0635\u0628\u0627\u063a PVC \u0627\u0644\u0639\u0636\u0648\u064a\u0629 \u0648\u063a\u064a\u0631 \u0627\u0644\u0639\u0636\u0648\u064a\u0629 \u0628\u062b\u0628\u0627\u062a \u062d\u0631\u0627\u0631\u064a \u0639\u0627\u0644\u064d\u060c \u0648\u0642\u0627\u0628\u0644\u064a\u0629 \u062a\u0634\u062a\u064a\u062a \u062c\u064a\u062f\u0629\u060c \u0648\u0645\u0642\u0627\u0648\u0645\u0629 \u0645\u0645\u062a\u0627\u0632\u0629 \u0644\u0644\u0636\u0648\u0621 \u0644\u0636\u0645\u0627\u0646 \u062b\u0628\u0627\u062a \u0627\u0644\u0644\u0648\u0646 \u0639\u0644\u0649 \u0627\u0644\u0645\u062f\u0649 \u0627\u0644\u0637\u0648\u064a\u0644.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-right\">\u062a\u0637\u0628\u064a\u0642\u0627\u062a PVC<\/h2>\n\n\n\n<p class=\"has-text-align-right\">4.1. \u0627\u0633\u062a\u062e\u062f\u0627\u0645 PVC \u0641\u064a \u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628<\/p>\n\n\n\n<p class=\"has-text-align-right\">\u062a\u064f\u0633\u062a\u062e\u062f\u0645 \u0623\u0646\u0627\u0628\u064a\u0628 PVC \u0639\u0644\u0649 \u0646\u0637\u0627\u0642 \u0648\u0627\u0633\u0639 \u0641\u064a \u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629 \u0648\u0627\u0644\u0625\u0646\u0634\u0627\u0626\u064a\u0629 \u0628\u0641\u0636\u0644 \u0645\u0642\u0627\u0648\u0645\u062a\u0647\u0627 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629\u060c \u0648\u0648\u0632\u0646\u0647\u0627 \u0627\u0644\u062e\u0641\u064a\u0641\u060c \u0648\u0639\u0645\u0631\u0647\u0627 \u0627\u0644\u062a\u0634\u063a\u064a\u0644\u064a \u0627\u0644\u0637\u0648\u064a\u0644.<\/p>\n\n\n\n<p class=\"has-text-align-right\">4.2. \u0627\u0633\u062a\u062e\u062f\u0627\u0645 PVC \u0641\u064a \u0642\u0637\u0627\u0639 \u0627\u0644\u0628\u0646\u0627\u0621<\/p>\n\n\n\n<p class=\"has-text-align-right\">\u062a\u0634\u0645\u0644 \u0645\u0646\u062a\u062c\u0627\u062a PVC \u0627\u0644\u0625\u0646\u0634\u0627\u0626\u064a\u0629 \u0628\u0631\u0648\u0641\u064a\u0644\u0627\u062a \u0627\u0644\u0623\u0628\u0648\u0627\u0628 \u0648\u0627\u0644\u0646\u0648\u0627\u0641\u0630\u060c \u0648\u0623\u0631\u0636\u064a\u0627\u062a PVC\u060c \u0648\u0627\u0644\u0623\u0633\u0642\u0641 \u0627\u0644\u0645\u0639\u0644\u0642\u0629\u060c \u0648\u0645\u0643\u0648\u0646\u0627\u062a \u0627\u0644\u0639\u0632\u0644 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u060c \u0648\u0627\u0644\u0623\u0644\u0648\u0627\u062d \u0627\u0644\u0632\u062e\u0631\u0641\u064a\u0629.<\/p>\n\n\n\n<p class=\"has-text-align-right\">4.3. \u0627\u0633\u062a\u062e\u062f\u0627\u0645 PVC \u0641\u064a \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0637\u0628\u064a\u0629<\/p>\n\n\n\n<p class=\"has-text-align-right\">\u064a\u064f\u0633\u062a\u062e\u062f\u0645 PVC \u0627\u0644\u0637\u0628\u064a \u0639\u0644\u0649 \u0646\u0637\u0627\u0642 \u0648\u0627\u0633\u0639 \u0641\u064a \u0627\u0644\u0645\u0633\u062a\u0644\u0632\u0645\u0627\u062a \u0627\u0644\u0637\u0628\u064a\u0629 \u0630\u0627\u062a \u0627\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0648\u0627\u062d\u062f \u0646\u0638\u0631\u064b\u0627 \u0644\u062a\u0648\u0627\u0641\u0642\u0647 \u0627\u0644\u062d\u064a\u0648\u064a\u060c \u0648\u0645\u062a\u0627\u0646\u062a\u0647\u060c \u0648\u0627\u0633\u062a\u0642\u0631\u0627\u0631\u0647 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u060c \u0648\u062a\u0643\u0644\u0641\u062a\u0647 \u0627\u0644\u0627\u0642\u062a\u0635\u0627\u062f\u064a\u0629.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-right\">\u0627\u0644\u062e\u0644\u0627\u0635\u0629 (\u0627\u0644\u0645\u0636\u0627\u0641\u0627\u062a \u0648\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0628\u0648\u0644\u064a \u0641\u064a\u0646\u064a\u0644 \u0643\u0644\u0648\u0631\u064a\u062f PVC)<\/h2>\n\n\n\n<p class=\"has-text-align-right\">\u064a\u064f\u0639\u062f \u0628\u0648\u0644\u064a \u0641\u064a\u0646\u064a\u0644 \u0643\u0644\u0648\u0631\u064a\u062f (<a href=\"https:\/\/www.pishrochem.com\/ar\">PVC<\/a>) \u0645\u0646 \u0623\u0643\u062b\u0631 \u0627\u0644\u0628\u0648\u0644\u064a\u0645\u0631\u0627\u062a \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629 \u0627\u0633\u062a\u062e\u062f\u0627\u0645\u064b\u0627. \u0648\u0645\u0646 \u062e\u0644\u0627\u0644 \u0625\u0636\u0627\u0641\u0629 \u0627\u0644\u0625\u0636\u0627\u0641\u0627\u062a \u0627\u0644\u0645\u0646\u0627\u0633\u0628\u0629\u060c \u064a\u0645\u0643\u0646 \u062a\u062d\u0648\u064a\u0644 PVC \u0625\u0644\u0649 \u0645\u0627\u062f\u0629 \u0647\u0646\u062f\u0633\u064a\u0629 \u0630\u0627\u062a \u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0648\u0627\u0633\u0639\u0629 \u0641\u064a \u0645\u062c\u0627\u0644\u0627\u062a \u0627\u0644\u0628\u0646\u0627\u0621\u060c \u0648\u0627\u0644\u0645\u0633\u062a\u0644\u0632\u0645\u0627\u062a \u0627\u0644\u0637\u0628\u064a\u0629\u060c \u0648\u0627\u0644\u062a\u063a\u0644\u064a\u0641\u060c \u0648\u0627\u0644\u0635\u0646\u0627\u0639\u0627\u062a \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629. \u0625\u0646 \u0627\u0644\u062a\u0637\u0648\u064a\u0631 \u0627\u0644\u0645\u0633\u062a\u0645\u0631 \u0644\u062a\u0631\u0643\u064a\u0628\u0627\u062a PVC \u0627\u0644\u0645\u062a\u0642\u062f\u0645\u0629 \u0648\u0627\u0644\u0625\u0636\u0627\u0641\u0627\u062a \u0627\u0644\u0645\u0628\u062a\u0643\u0631\u0629 \u064a\u0636\u0645\u0646 \u0645\u0633\u062a\u0642\u0628\u0644\u064b\u0627 \u0648\u0627\u0639\u062f\u064b\u0627 \u0644\u0647\u0630\u0647 \u0627\u0644\u0635\u0646\u0627\u0639\u0629 \u0627\u0644\u062d\u064a\u0648\u064a\u0629.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"814\" height=\"435\" src=\"https:\/\/www.pishrochem.com\/blog\/wp-content\/uploads\/2025\/12\/image-1.png\" alt=\"\" class=\"wp-image-6605\" style=\"aspect-ratio:1.871362885264746;width:649px;height:auto\" srcset=\"https:\/\/www.pishrochem.com\/blog\/wp-content\/uploads\/2025\/12\/image-1.png 814w, https:\/\/www.pishrochem.com\/blog\/wp-content\/uploads\/2025\/12\/image-1-300x160.png 300w, https:\/\/www.pishrochem.com\/blog\/wp-content\/uploads\/2025\/12\/image-1-768x410.png 768w\" sizes=\"(max-width: 814px) 100vw, 814px\" \/><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u064a\u064f\u0639\u062f \u0628\u0648\u0644\u064a \u0641\u064a\u0646\u064a\u0644 \u0643\u0644\u0648\u0631\u064a\u062f (Polyvinyl Chloride \u2013 PVC) \u0648\u0627\u062d\u062f\u064b\u0627 \u0645\u0646 \u0623\u0647\u0645 \u0627\u0644\u0628\u0648\u0644\u064a\u0645\u0631\u0627\u062a \u0627\u0644\u0644\u062f\u0646\u0629 \u062d\u0631\u0627\u0631\u064a\u064b\u0627 \u0641\u064a \u0635\u0646\u0627\u0639\u0629 \u0627\u0644\u0628\u0644\u0627\u0633\u062a\u064a\u0643. \u064a\u062a\u0645\u064a\u0632 PVC \u0627\u0644\u0646\u0642\u064a \u0628\u0644\u0648\u0646\u0647 \u0627\u0644\u0623\u0628\u064a\u0636 \u0648\u0635\u0644\u0627\u0628\u062a\u0647 \u0648\u0647\u0634\u0627\u0634\u062a\u0647. \u0648\u064a\u064f\u0635\u0646\u064e\u0651\u0641 \u0628\u0639\u062f \u0627\u0644\u0628\u0648\u0644\u064a \u0625\u064a\u062b\u064a\u0644\u064a\u0646 (PE) \u0648\u0627\u0644\u0628\u0648\u0644\u064a \u0628\u0631\u0648\u0628\u064a\u0644\u064a\u0646 (PP) \u0643\u062b\u0627\u0644\u062b \u0623\u0643\u062b\u0631 \u0627\u0644\u0628\u0648\u0644\u064a\u0645\u0631\u0627\u062a \u0627\u0633\u062a\u062e\u062f\u0627\u0645\u064b\u0627 \u0641\u064a \u0627\u0644\u0639\u0627\u0644\u0645\u060c \u062d\u064a\u062b \u064a\u0628\u0644\u063a \u0627\u0644\u0625\u0646\u062a\u0627\u062c \u0627\u0644\u0639\u0627\u0644\u0645\u064a \u0627\u0644\u0633\u0646\u0648\u064a \u0645\u0646\u0647 \u062d\u0648\u0627\u0644\u064a 40 \u0645\u0644\u064a\u0648\u0646 \u0637\u0646. \u0627\u0644\u0635\u064a\u063a\u0629 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u0644\u0628\u0648\u0644\u064a \u0641\u064a\u0646\u064a\u0644 \u0643\u0644\u0648\u0631\u064a\u062f \u0647\u064a (C\u2082H\u2083Cl)\u2099\u060c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6604","post","type-post","status-publish","format-standard","hentry","category-1"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.7 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>\u0627\u0644\u0645\u0636\u0627\u0641\u0627\u062a \u0648\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0628\u0648\u0644\u064a \u0641\u064a\u0646\u064a\u0644 \u0643\u0644\u0648\u0631\u064a\u062f (PVC) | Pishrochem<\/title>\n<meta name=\"description\" content=\"\u064a\u064f\u0639\u062f \u0628\u0648\u0644\u064a \u0641\u064a\u0646\u064a\u0644 \u0643\u0644\u0648\u0631\u064a\u062f (Polyvinyl Chloride \u2013 PVC) \u0648\u0627\u062d\u062f\u064b\u0627 \u0645\u0646 \u0623\u0647\u0645 \u0627\u0644\u0628\u0648\u0644\u064a\u0645\u0631\u0627\u062a \u0627\u0644\u0644\u062f\u0646\u0629 \u062d\u0631\u0627\u0631\u064a\u064b\u0627 \u0641\u064a \u0635\u0646\u0627\u0639\u0629 \u0627\u0644\u0628\u0644\u0627\u0633\u062a\u064a\u0643. \u064a\u062a\u0645\u064a\u0632 PVC \u0627\u0644\u0646\u0642\u064a \u0628\u0644\u0648\u0646\u0647 \u0627\u0644\u0623\u0628\u064a\u0636\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.pishrochem.com\/blog\/ar\/\u0627\u0644\u0645\u0636\u0627\u0641\u0627\u062a-\u0648\u062a\u0637\u0628\u064a\u0642\u0627\u062a-\u0628\u0648\u0644\u064a-\u0641\u064a\u0646\u064a\u0644-\u0643\u0644\u0648\u0631\u064a\u062f-pvc\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u0627\u0644\u0645\u0636\u0627\u0641\u0627\u062a \u0648\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0628\u0648\u0644\u064a \u0641\u064a\u0646\u064a\u0644 \u0643\u0644\u0648\u0631\u064a\u062f (PVC)\" \/>\n<meta property=\"og:description\" content=\"\u064a\u064f\u0639\u062f \u0628\u0648\u0644\u064a \u0641\u064a\u0646\u064a\u0644 \u0643\u0644\u0648\u0631\u064a\u062f (Polyvinyl Chloride \u2013 PVC) \u0648\u0627\u062d\u062f\u064b\u0627 \u0645\u0646 \u0623\u0647\u0645 \u0627\u0644\u0628\u0648\u0644\u064a\u0645\u0631\u0627\u062a \u0627\u0644\u0644\u062f\u0646\u0629 \u062d\u0631\u0627\u0631\u064a\u064b\u0627 \u0641\u064a \u0635\u0646\u0627\u0639\u0629 \u0627\u0644\u0628\u0644\u0627\u0633\u062a\u064a\u0643. \u064a\u062a\u0645\u064a\u0632 PVC \u0627\u0644\u0646\u0642\u064a \u0628\u0644\u0648\u0646\u0647 \u0627\u0644\u0623\u0628\u064a\u0636\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.pishrochem.com\/blog\/ar\/\u0627\u0644\u0645\u0636\u0627\u0641\u0627\u062a-\u0648\u062a\u0637\u0628\u064a\u0642\u0627\u062a-\u0628\u0648\u0644\u064a-\u0641\u064a\u0646\u064a\u0644-\u0643\u0644\u0648\u0631\u064a\u062f-pvc\/\" \/>\n<meta property=\"og:site_name\" content=\"Pishrochem\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-15T11:01:16+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-15T11:01:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.pishrochem.com\/blog\/wp-content\/uploads\/2025\/12\/image-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"814\" \/>\n\t<meta property=\"og:image:height\" content=\"435\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"pishrochem\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"pishrochem\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.pishrochem.com\\\/blog\\\/ar\\\/%d8%a7%d9%84%d9%85%d8%b6%d8%a7%d9%81%d8%a7%d8%aa-%d9%88%d8%aa%d8%b7%d8%a8%d9%8a%d9%82%d8%a7%d8%aa-%d8%a8%d9%88%d9%84%d9%8a-%d9%81%d9%8a%d9%86%d9%8a%d9%84-%d9%83%d9%84%d9%88%d8%b1%d9%8a%d8%af-pvc\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.pishrochem.com\\\/blog\\\/ar\\\/%d8%a7%d9%84%d9%85%d8%b6%d8%a7%d9%81%d8%a7%d8%aa-%d9%88%d8%aa%d8%b7%d8%a8%d9%8a%d9%82%d8%a7%d8%aa-%d8%a8%d9%88%d9%84%d9%8a-%d9%81%d9%8a%d9%86%d9%8a%d9%84-%d9%83%d9%84%d9%88%d8%b1%d9%8a%d8%af-pvc\\\/\"},\"author\":{\"name\":\"pishrochem\",\"@id\":\"https:\\\/\\\/www.pishrochem.com\\\/blog\\\/#\\\/schema\\\/person\\\/94a446816f201f646fced68b7919e08a\"},\"headline\":\"\u0627\u0644\u0645\u0636\u0627\u0641\u0627\u062a \u0648\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0628\u0648\u0644\u064a \u0641\u064a\u0646\u064a\u0644 \u0643\u0644\u0648\u0631\u064a\u062f 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