1914 found that organic peroxides can accelerate the polymerization of vinyl chloride, 1931 German law the company uses to achieve industrial production of polyvinyl chloride emulsion polymerization. 1933 WL Simon proposed using high-boiling solvents and tricresyl heated and mixed with PVC, can be processed into a soft PVC products, this makes practical use of PVC has been a real breakthrough. British Imperial Chemical Industries Company, Union Carbide Corporation and Goodrich Chemical Company has developed almost simultaneously suspension polymerization of vinyl chloride and PVC processing applications in 1936. In order to simplify the production process, reduce energy consumption, in 1956 the French Shengge Bang has developed a bulk polymerization. In 1983, total world consumption of about 11.1Mt PVC injection pipe products, with a total production capacity of approximately 17.6Mt; is the second largest after the production of polyethylene plastic variety, accounting for 15% of total production of plastics. PVC production plant in China in 1956 to design a trial production of PVC pipe in Liaoning Jinxi Chemical Injection, 1958 3kt device formal industrial production, 1984 annual 530.9kt. pvc pipes PVC injection export price, 1 to total export volume of China's PVC substantial increase 152.4 percent in May from a year earlier. From the flow point of view, is India's largest export consumer market; exports to Russia, the slowdown in the number of sources, ranking second. In addition, since the financial crisis erupted PVC injection pipe processing, global markets, trade environment has undergone great changes, national trade protectionism, trade frictions increased significantly for our enterprise products. PVC injection pipe fittings, PVC injection pipe, sea Widex Widex provided by Qingdao Rubber Material Co., Ltd. Widex Qingdao Rubber Material Co., Ltd. (www.haihuidaxiangsu.com) strong, credible, in Qingdao, Shandong industrial products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the sea Widex and you work into the brilliant, for a better future!