Plastic pipe as an important part of chemical building materials supply PVC plastic, with its superior performance, health, environmental protection, low power consumption and other widely accepted by the majority of users, mainly UPVC drainage pipe, UPVC pipe, aluminum-plastic composite pipe PVC plastic, Polyethylene (PE) these types of water pipe. Plastic pipe is made of high-tech composite construction chemicals, building materials and chemical after following the steel, timber, cement, contemporary new fourth category of new building materials. Chemical building materials in our country has made considerable progress in the rapid development, especially the widespread use of new environmentally friendly plastic pipe, setting off a sound alternative to traditional building materials revolution. Plastic pipe has a water loss due to a small, energy, materials, ecological protection, completion convenient, it is widely used in building water supply and drainage, urban drainage and gas pipes and other fields, has become the new century, the main force of urban construction pipeline. PVC resin is a less stable polymer, will degrade under the action of light and heat, the process is hydrogen chloride evolution, structural changes occur, but the extent of relatively light. At the same time when a mechanical force, oxygen, odors, HCl and some of the active metal ions accelerate decomposition. PVC resin prices after the removal of HCl PVC plastic, in the main chain conjugate produced double-stranded, the color will change. With the increase in the number of hydrogen chloride decomposition, polyvinyl chloride resin, the original white to yellow, pink, red, brown and even black. Qingdao PVC plastic, PVC plastic, 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!