Glass Reinforced Plastic Pipe is a thermosetting resin matrix, fiberglass and its products as a reinforcing material, using computer-controlled mechanical winding process made. From the process structure can be divided into plain glass pipes and glass Reinforced Plastic Pipe both the main difference between the two is that the former solid glass filament-wound steel, which is a continuous filament winding and coarse molding process, the wall of the middle layer do into the resin mortar layer to increase the wall thickness, stiffness, enhanced resistance to external loading capacity.