Typical uses: PVC has the outstanding characteristics of rich raw materials (oil, limestone, coke, salt and natural gas), mature manufacturing technology, low price and wide application. Now it has become the second largest general resin in the world, accounting for 29% of the total consumption of synthetic resin in the world. PVC is easy to process, and can be processed by molding, laminating, injection molding, extrusion, calendering and blow molding. PVC is mainly used to produce artificial leather, film, wire sheath and other plastic soft products, water supply pipes, household pipes, house wall panels, commercial machine shells, electronic product packaging, medical equipment, food packaging, and also can produce plastic hard products such as plates, doors and windows, valves and so on. The natural color of polyvinyl chloride (PVC) is yellowish, translucent and shiny. Transparency is better than polyethylene and polystyrene, but worse than polystyrene. With the different dosage of additives, it can be divided into soft PVC and hard PVC. Soft-packed products are soft and tough and sticky to the touch. The hardness of hard products is higher than that of low density polyethylene, but lower than that of polypropylene, and whitening will occur at the bending point. Common products: plates, pipes, soles, toys, doors and windows, wire sheaths, stationery, etc. PVC can be divided into soft PVC and hard PVC. Among them, hard PVC accounts for about 2/3 of the market and soft PVC accounts for 1/3. Soft PVC is generally used for floors, ceilings and leather surfaces, but its application is limited because it contains softener (which is also the difference between soft PVC and hard PVC), which is easy to become brittle and difficult to store. Rigid PVC contains no softener, so it is flexible and easy to form, not fragile, non-toxic and pollution-free, and has long storage time, which is of great development and application value. Hereinafter referred to as PVC. The essence of PVC is a kind of vacuum plastic film, which is used for surface packaging of various panels, so it is also called decorative film and adhesive film, and is used in building materials, packaging, medicine and other industries. Among them, the building materials industry accounts for the largest proportion, accounting for 60%, followed by the packaging industry and several other small-scale application industries. Typical uses: PVC has the outstanding characteristics of rich raw materials (oil, limestone, coke, salt and natural gas), mature manufacturing technology, low price and wide application. Now it has become the second largest general resin in the world, accounting for 29% of the total consumption of synthetic resin in the world. PVC is easy to process, and can be processed by molding, laminating, injection molding, extrusion, calendering and blow molding. PVC is mainly used to produce artificial leather, film, wire sheath and other plastic soft products, water supply pipes, household pipes, house wall panels, commercial machine shells, electronic product packaging, medical equipment, food packaging, and also can produce plastic hard products such as plates, doors and windows, valves and so on.