PVC material is PVC, it is one of the world's largest production of plastic products, cheap, widely used, polyvinyl chloride resin is white or light yellow powder, can not be used alone, must be modified. PVC is an amorphous white powder with a low degree of branching and poor stability to light and heat. Different additives can be added according to different purposes. PVC plastics can exhibit different physical properties and mechanical properties. Adding an appropriate amount of plasticizer to PVC resin can make a variety of hard, soft and transparent products.