Plastic PS with ABS and other mixed processing?
OPP: oriented polypropylene (film)PP: PolypropyleneIt's a semi crystalline thermoplastic. With high impact resistance, strong mechanical properties, resistance to a variety of organic solvents and acid base corrosion. It is widely used in industry and is one of the common polymer materials. Australian coins are also made from polypropylene
PVC: PVCA polymer material that uses a chlorine atom instead of a hydrogen atom in polyethylene.Polyvinyl chloride is the most characteristic flame retardant, so it is widely used in fire protection applications. But polyvinyl chloride releases hydrochloric acid and other toxic gases in the process of burning.