QINGDAO COMRISE MACHINERY CO., LTD is located in Qingdao, has 20 years experience in technological innovation, internal management and external market . We are a high-tech enterprise involved in the subject of polymer materials, integrating plastic machinery research and development, design and manufacturing, production management and technical services. . QINGDAO COMRISE MACHINERY rely on high-tech, high-quality products and perfect services to create good economic and social benefits. QINGDAO COMRISE MACHINERY main production line including high-efficiency PE water supply pipe production line, PE large-diameter hollow-wall winding pipe production line, PPR cold and hot water supply pipe production line, the inner-rib winding sewage pipe production line, the double-plastic composite winding pipe production line, the continuous winding carat pipe production line, and the PE large-diameter hollow wall production line , the plastic coated corrugated pipe production line