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Vinyl plastic and PVC are often the same thing. PVC is polyvinyl chloride and it is a type of vinyl polymer.
Polymer. Metal rusts, polymer can't.
poly vinyl chloride is a polymer made by polmerisation of vinyl chloride.
water pipes are almost always made of a polymer PVC (Poly Vinyl Chloride)... it is a linear polymer with 1-chloro ethene as its repeating unit...
common example is PVC (poly vinyl chloride) a polymer of vinyl chloride