Pe water pipe quotations provisions contained in the following standards, through reference in this text, constitute provisions of the standard. At time of publication, the editions indicated were valid. All standards are subject to revision, the standard parties should explore the possibility of using the latest version of the following standards. GB / T 2918 a 1998 plastic sample conditioning and testing of the standard environment (idt ISO 291: 1997) GB / T 3681-1983 Plastics exposure to natural weathering test method 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 equipment and protective materials evaluation criteria GB / T 17391-1998 polyethylene pipes and fittings thermal stability test method (eqv 1991) Longyan pe water pipe, Mountains region pe pipe, provided by Xiong Xiong Wong Tai Wang Thai Plastic Products Factory. Xiong Wang Thai Plastic Products Factory (www.wangtai668. com) strong, credible, in Baoding UPVC pipe industry has accumulated a large number of loyal customers. The company better work attitude and constantly improve the innovative ideas will lead Taihe Wang Xiong you hand into the brilliant, for a better future !