GB / T 8806 a 1988 plastic pipe size measurement method (eqv 1974) GB / T 13021 ~ 199 1 black polyethylene pipe and fittings - Determination of pyrolysis (neq 1986 GB / T 17219-1998 in drinking water safety evaluation standards of equipment and protective materials GB / T 17391-1998 polyethylene pipes and fittings thermal stability test method (eqv 1991) · easy construction, welding process is simple Chengyang pe pipe, engineering and lower total cost. color pipe white, black or agreed color. Gas Gas holes with steel plastic composite pipe network system using PE80 or PE100 two materials imported Jiangyin pe pipe, manufactured in accordance with corporate standards, has good weldability, resistance to environmental stress cracking resistance and resistance to rapid crack resistance, its application performance than pure PE gas pipes. Zhengzhou pe pipe, Xiong Wang Thai (certified), Jiyuan City pe water supply provided by Xiong Wang Thai Plastic Products Factory. Xiong Wang Thai Plastic Products Factory (www.wangtai668.com) Hebei Baoding, UPVC pipe leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Xiong Wang Thai leadership with staff warmly welcome all inquiries negotiations to create Xiong Wong Tai a better future.