PVC is a plastic inside.

Plastic classified roughly: PE, PVC, polypropylene, polystyrene, polyvinyl alcohol and polyacrylic acid, poly (butylene, polyisobutylene, polysulfone, polyoxymethylene, polyamide, polycarbonate, polylactic acid, ptfe, terephthalic acid ethyl ester, epoxy resin, phenolic resin, polyurethane.

According to utility cent:

General plastics, such as polyethylene, polypropylene, polyvinyl chloride (PVC) Engineering plastic, polycarbonate, polysulfone, polyphenylene oxide, polyamide, polyformaldehyde Special plastic, such as medical plastic, conductive plastic, high temperature resistant plastic