UPVC profiles, also known as rigid PVC or PVC-U products, are amorphous molded resins that are polymerized using vinyl chloride monomer as the main raw material. It is an epoxy resin agent, so it has good toughness, easy to shape, not fragile, non-toxic and pollution-free, has a long storage time, and has great development and application value. UPVC profiles are widely used in the pipeline industry, water supply and drainage, lighting cable brackets, electrical lighting switch cabinets, sockets, profiles, plastic steel, some fenders, bumpers, etc.