ppr fiber-glass composite pipes make use of 100%imported raw materials,and thus guarantee its product quality.This high-performance pipe is producd through multi-layer co-extrusion at low temperature and high speed by special technique and equipment.this pipe has 3layers,in which the internal and external layer is made of ppr materials,while the middle layer is stiffened and reinforced composite materials.its nominal outside diameter has over 10 specifications,which ranges from 20mm and 63mm.