... , 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 the ... PE-RT,ABS,PPR. 2) PE Water/gas Supply Pipe Production Line is of good exterior design, ... large are often used as HDPE water supply pipes, natural gas supply pipes, in coal mines and other ...