... PE, PB, PERT, ABS etc, PE Water/gas Supply Pipe Production Line 1) Qingdao Yonghuanxin Plastic Machinery ... Co.,Ltd supplies PE Water/gas Supply Pipe Production Line is developed by assimilating ... ,PE-RT,ABS,PPR. 2) PE Water/gas Supply Pipe Production Line is of good exterior ... often used as HDPE water supply pipes, natural gas supply pipes, in coal mines and other trenchless ...