PVC (polyvinyl chloride) is a kind of plastic decorating material. It is mainly made of polyvinyl chloride resin, added with some anti-aging agent, modifier, etc., and goes through the processes of mixing, pressing and extending. After covered with PVC, the plasterboard has the following features: light, heat insulation, heat preservation, damp proofing, flame retardant, easy construction, and so on. As one of the most widely used decorating materials, it can be used in decorating the wall and ceiling with its various specifications, colors and patens.