PVC refers to poly vinyl chloride (PVC). It is a kind of vinyl polymer, and its material is an amorphous material. Stabilizers, lubricants, auxiliary processing agents, colorants, impact agents and other additives are often added to PVC materials in practical use. It has non flammability, high strength, weather resistance and excellent geometric stability. PVC has strong resistance to oxidants, reducing agents and strong acids. However, it can be corroded by concentrated oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid, and is not suitable for contact with aromatic hydrocarbons and chlorinated hydrocarbons. In addition, the game term person vs computer, abbreviated as PVC, and PVC Figure is often referred to as PVC.