... Below for WATER,GAG,COAL MINE : 1. HDPE Pipe (OD: 20mm to 1200mm) and HDPE Fittings ( ... and hot water supply pipe-PPR pipe and fitting, PPP-AL-PPR composite pipe 4.Steel wire reinforced ... pipe (OD:75mm to 630mm) and electro fusion fitting(PN:1.6Mpa,2.0Mpa,2.5Mpa,3.5Mpa,5 ... Donghong Industry CO., LTD. is a professional pipe manufacture since 1998. 5. Donghong Pipe: Quality, Trust, Stable. 6. ISO9001 ...