Polyvinyl Chloride (PVC) is one of the most commonly used thermoplastic polymers in the world (next to only a few more widely used plastics like PET and PP). It is a naturally white and very brittle (prior to the additions of plasticizers) plastic. PVC cabinet board has been around longer than most plastics having been first synthesized in 1872 and commercially produced by B.F. Goodrich Company in the 1920s. By comparison, many other common plastics were first synthesized and became commercially viable only in the the 1940s and 1950s. It is use
اس گروپ کو رپورٹ کریں۔
پیشکش میں ترمیم کریں۔
درجے شامل کریں۔
اپنے درجے کو حذف کریں۔
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جائزے
بٹوے کے ذریعے ادائیگی کریں۔
ادائیگی کا انتباہ
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