The difference between standard and GB / T 13663-1992 is: GB / T 13663-1992 "Water use high-density polyethylene (HDPE) pipe" did not use international standards. From the date of implementation of this standard from pe water pipe model, but instead of GB / T 13663-1992 standard Appendix A of this Appendix for tips. This standard applies to use PE63, PE 80 and PE 100 materials (see 4.1) manufactured water supply pipe. Pipe nominal pressure 0.32MPa ~ 1.6MPa, nominal diameter of 16 mm ~ 1000 mm. Xiong Wang Thai Plastic Products Factory Baoding Tongzhou pe pe water pipe water supply _ _ 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 improving innovative ideas will lead Taihe Wang Xiong you hand into the brilliant, for a better future!