... pulling, punching, transporting, heating & sealing, etc.The PVC formed after heating and being soften in the forming mould. ... boards open automatically, prevent the PVC overheating.2. Forming: Stretching the PVC by the convex mould, then blowing ... , toys, hardware, small appliances, electronics, automobile and motorcycle parts, household goods, cosmetics, rubber products, tableware, kitchen utensils, ...