Hot dip preform mould Suppliers steel can be called hot dip coated steel, the different nature of it and electrostatic spraying, the polymer coating is corrosion by high-pressure electrostatic plastic powder coated steel surface sprinkled in, and dip is put directly into the pipe Plastic wells polymer powder, processing the same purpose of these two are so welded at high temperature plastic powder in the surface of the pipe to form a composite tubular body.. Epoxy coated steel pipes for conveying water supply and drainage, water, warm water, oil, gas and other media, PVC plastic pipe for conveying drainage, China preform mould Suppliers steel lined with plastic, so its actual diameter composite pipe significantly less than the specified diameter, coupled with its joints to achieve corrosion requirements, the actual path lined after its less than the specified diameter of 1/3. Painting can be used when spraying or dip, high-voltage electrostatic spray painting is by way of the epoxy powder coated steel surface, dip is directly immersed in the well pipe, filling epoxy powder. Can effectively prevent the destruction of plant roots and soil environmental stresses. Lined steel reinforcement embedded within the outer layer of galvanized steel is specially processed, so its actual diameter composite pipe is China Commodity mould Manufacturers fully consistent with the provisions of diameter, and pipe joints no path loss. 
Inner pollution prevention measures to improve: the use of ordinary steel pipe fittings to connect the traditional way, will cause secondary pollution of water after fitting threaded outer rust.pubomould.com/product/injection-mold/">Crate Injection Moulds Suppliers water, oil, gas and other media