PVC sheet is a vacuum blister film, for various types of panels on the surface of packaging, so it is also known as decorative film, adhesive film, should be used in building materials, packaging, medicine and many other industries. Building materials industry accounted for the largest proportion of 60%, followed by the packaging industry, there are a number of other small-scale applications of the industry. According to the soft and hard degree can be divided into soft PVC and hard PVC. According to the production process can be divided into PVC crust foam plate and PVC free foam board. PVC plates are generally used for flooring, ceilings and leather surface, but because soft PVC contains softener, easy to brittle, not easy to save, so the scope of its use is limited. Rigid PVC non-softening agent, flexible, easy to molding, not easy to brittle, non-toxic pollution, long preservation, so it has great development and application value. PVC board has excellent corrosion resistance, insulation, and has a certain mechanical strength; the sulfuric acid (hydrochloric acid) trough (barrel box) can be made after two machining, and the empty needle rack, the process rack, the public sanitary water tank, the template of the processing product, the decorative plate, the exhaust duct, the equipment lining and other special-shaped products, containers. is the chemical industry, building materials, decoration and other industrial ideal choice materials.