polyvinyl chloride is the world's third-most widely produced synthetic plastic , after polyethylene and polypropylene. about 40 million tonnes are produced per year. pvc comes in two basic forms: rigid (sometimes abbreviated as rpvc) and flexible. the rigi
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like most myths, the ones about pvc are often sourceless or based .. flexible, but they can provide transparency and durability as well. in fact, to cite a typical quote, this one from a 2001 study on plasticizers by the swedish national board of.