... , called "magic plastic", it focused almost all kinds of plastic, has the advantages of other plastic incomparable wear-resisting, impact resistance, self ... the advantage, especially the impact strength is common polyethylene pipe of more than four times as much, but say "hit not ... :1.Anti-abrasion: the abrasion value of UHMWPE pipe is 1/4 of steel pipe, 1/3 of HDPE pipe under same working conditions ...