PVC heat shrink bags,Polyvinyl chloride shrinkable bags,stretch wrap packaging,packaging material,plastics industrial. PVC heat shrink ... chloride shrinkable bags,stretch wrap packaging,packaging material,plastics industrial.The character of POF heat shrinkage films:1.Innoxious property, ... PVC and other plastic wrapping material.The heat shrinkage films are widely used in these series:1.Cookies,candy ...