Application of Steel plastic wear resistant pipe fittings: Supporting the use of steel plastic wear resistant pipe, for conveying corrosive fluids, can be used in place of stainless steel pipes, rubber lined pipes, glass-lined pipes and other metal pipes. 　　Steel plastic composite pipe technology: 　　Steel plastic composite straight pipe is a new corrosion pipe, using advanced thermal rotational molding process, blend steel and plastic, pipe fittings including elbow, tee, Stone and Sizes etc. all use the whole steel shell, lined with plastic overall pressure injection molding.