Plastic profile extrusion die is a core part of the plastic material extrusion of PVC pipe, plastic profile extrusion die technology status is directly related to the stability of extrusion, extrusion quality products, extrusion production efficiency and service life of the mold itself . Therefore, plastic profile extrusion die proper use and maintenance is very important. Plastic profile extrusion die checking the box to check the box after the arrival, the packaging is intact: Remove the packing list of technical documents, instruction manual and other plastic PVC pipe supply out of the box, according to an inventory of the contents of the packing list for the formation of the whole mold , accessories, special tools. Plastic profile products use more: window frames, stair handrails, trunking, skirting boards, shaped and so on. The main raw material is hard PVC, few are semi-rigid PVC, soft PVC, polyurethane foam and other materials low. PVC plastic is a liquid vinyl chloride monomer (VCM) by suspension polymerization, emulsion, bulk or solution process from which the suspension polymerization process mature production technology, simple operation, low production costs, product variety, a wide range of applications of plastic PVC pipe price, has been the main method of production of PVC resins, PVC production facility in the world approximately 90% of the proportion (in the world production of PVC homopolymer also accounted for about 90% of the scale). Followed by emulsion method for the production of PVC paste resin. Its polymerization by a free radical initiator, the reaction temperature is generally 40 ~ 70OC, reaction temperature and concentration of the initiator of the polymerization reaction rate and the molecular weight distribution of PVC resin great influence. PVC plastic pipe fittings _ sea Widex (certified) _ plastic PVC pipe provided by Qingdao Rubber Material Co. Widex. Widex Qingdao Rubber Material Co., Ltd. (www.haihuidaxiangsu.com) is Qingdao, industrial products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Widex leadership in the sea with the staff warmly welcome all inquiries negotiations to create sea Widex a better future.