From the early 1980s, the country to promote the use of upvc pipe, and developed a series of policies, systems, standards, and has accumulated a lot of experience. To today, already have a sound product standards, test method standards and testing methods, construction engineering and technical specifications, so as to unify the standard size and quality indicators, to achieve a product interchangeability. This shows that the development of pvc water supply pipe has entered a mature stage, the product quality and construction quality are guaranteed, thus ensuring the use of effects pvc water supply pipe. The water supply pipe pe international standard (ISO4427) was officially released until 1996. Our reference in 1999 to write the national standard ISO4427 GB / T13663, and promulgated in 2000, but has standard pe pipe fittings, engineering and other technical specifications continues perfected. This shows that domestic pe pipe quality has not been stable, pipe fittings supporting not perfect, and therefore can not ensure the production, construction quality. PVC is the growth rate of 4% of the production and application worldwide. PVC growth in Southeast Asia is particularly significant, thanks to the Southeast Asian countries have carried out urgent infrastructure needs. In the three-dimensional surface film can produce the material of the material properties of ABS (acrylonitrile - butadiene - styrene) ABS is used for conveying drinking water, mud and chemicals. The most commonly used DWV (drain waste exhaust) applications. Unplasticized polyvinyl chloride (UPVC) and CPVC (chlorinated polyvinyl chloride after) having the entire operating temperature range within UPVC excellent chemical resistance, with a wide range of operating pressure belt. Due to the nature of long-term high-intensity, stiffness and cost-effectiveness, UPVC systems account for a large proportion of the plastic pipe installation. CPVC is resistant to many acids, bases, salts, paraffins thick pvc tubes, halogen and alcohols. This is not an anti-solvent pvc pipe business, aromatics and some chlorinated hydrocarbons. PP (polypropylene) Polypropylene is suitable for use in food, drinking water and ultra pure waters, as well as in the pharmaceutical, chemical and other industries. PE (polyethylene) polyethylene has been used successfully for many years drinking water and wastewater, hazardous waste, and safe transportation of compressed gas. From the early 1980s, the country to promote the use of upvc pipe, and developed a series of policies, systems, standards, and has accumulated a lot of experience. To today, already have a sound product standards, test method standards and testing methods, construction engineering and technical specifications, so as to unify the standard size and quality indicators, to achieve a product interchangeability. This shows that the development of pvc water supply pipe has entered a mature stage, the product quality and construction quality are guaranteed pvc pipe, thus ensuring the use of effects pvc water supply pipe. The water supply pipe pe international standard (ISO4427) was officially released until 1996. Our reference in 1999 to write the national standard ISO4427 GB / T13663, and promulgated pvc pipe production in 2000, but has standard pe pipe fittings, engineering and other technical specifications continues perfected. This shows that domestic pe pipe quality has not been stable, pipe fittings supporting not perfect, and therefore can not ensure the production, construction quality. pvc pipe business | pvc pipe | sea Widex Widex provided by Qingdao Rubber Material Co., 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!