Steel plastic composite pipe fittings

　　Steel plastic composite pipe, with seamless steel pipe and welded steel pipe as the base pipe, coated with high adhesion, anti-corrosion, food grade hygiene polyethylene powder coating or epoxy resin coating on the inner wall. The water supply galvanized inner coated plastic composite steel pipe made by pre-treatment, preheating, inner coating, leveling, and post-treatment processes is an upgraded product of traditional galvanized pipes.