▎ 摘　　要

NOVELTY - A high-strength polyethylene pipe fitting comprises a polyethylene outer layer, a polyethylene middle layer and a polyethylene inner layer; where the polyethylene outer layer is nested outside the polyethylene middle layer; the polyethylene middle layer The nested arrangement is outside the polyethylene inner layer; a reinforcement layer is provided between the polyethylene outer layer and the polyethylene middle layer; the reinforcement layer is a mesh structure or a planar structure. USE - Polyethylene pipe fitting for replacing possibility of metal pipes in chemical industry. Can also be used in high pressure fire monitor with high compressive strength. ADVANTAGE - The polyethylene pipe fitting has high compressive strength and good corrosion resistance. DESCRIPTION OF DRAWING(S) - The drawing shows a structure schematic diagram of the polyethylene pipe with high strength. 110Polyethylene inner layer 111Electric heating layer 112Reinforcing layer 120Polyethylene middle layer 130Polyethylene outer layer