וואָס פּונקט איז פּווק פּלאַסטיק מאַטעריאַל? PVC, the full name is Polyvinylchloride, the main component is polyvinyl chloride, and other components are added to enhance its heat resistance, toughness, ductility, etc. Three layers of PVC sheetThe top layer of PVC is lacquer, the main component in the middl