... .manufacturer, 20 years experience 2.support OEM LARGE DIAMETER HDPE PIPE FOR WATER SUPPLY1. Introduction:1.material:HDPE2. ... 20years experience High density polyethylene as raw material, product diameter, length and other types of indexes can be based ... corrosion, good insulation performance, long service life: raw material HDPE, with high mechanical strength and good corrosion resistance,effectively ...