Certificate-Sichuan Cheng Yuan Yong Hao Science and Technology Co., Ltd, the Division mainly engaged in: water pipeline series: HDPE water supply pipe, HDPE steel wire mesh skeleton pipe, PPR water supply pipe, PPR aluminum alloy liner pipe, HDPE irrigation pipe, etc.; water pipeline series: HDPE socket steel belt reinforced spiral corrugated pipe, HDPE flat mouth steel belt reinforced spiral corrugated pipe, HDPE winding reinforced structural wall pipe (Clara pipe), HDPE winding reinforced structural wall pipe (Clara pipe). Sewage pipe series: HDPE socket steel belt reinforced spiral corrugated pipe, HDPE flat mouth steel belt reinforced spiral corrugated pipe, HDPE winding reinforced structural wall pipe (Claratube), HDPE double-wall corrugated pipe, HDPE hollow-wall winding pipe, HDPE borehole pipe, HDPE seepage pipe, HDPE inspection wells, etc.; power, communication pipe series: MDPE water supply pipe, HDPE wire mesh skeleton pipe, PPR water supply pipe, PPR aluminum alloy plastic lining pipe, HDPE irrigation pipe, etc. Power, communication pipe series: MPP power pipe, C-PVC power pipe, glass fiber reinforced plastic (FRP) power pipe, U-PVC110 corrugated pipe, five-hole pipe, seven-hole pipe, nine-hole pipe, etc.; pipeline installation equipment series: HDPE water supply pipe manual electrothermal fusion butt-jointing machine, HDPE water supply pipe hydraulic electrothermal fusion butt-jointing machine, HDPE electrothermal fusion welder, PPR heat fusion, sewage pipe tighteners and so on.