The production process of hot-rolled high-pressure seamless pipe is to pierce and roll a solid pipe billet or steel ingot into a seamless pipe that meets the product standard.

Polyurethane insulation steel pipe is currently the most widely used insulation steel pipe product under low pressure. It is mainly suitable for transporting hot and cold water, etc.

People treat this two-phase structure composed of a specific ratio as a kind of organization and named it pearlite. This kind of steel is called eutectoid steel. That is, steel with a carbon content of exactly 0.77% is called eutectoid steel, and its structure is pearlite.　

The precision steel pipe has high dimensional accuracy and high finish, the inner and outer surfaces of the pipe have no oxide film after heat treatment.

Large diameter steel pipe plays an important role in oil and gas transmissions. It used a lot for long distances pipeline projects, since it could carry more liquid and with big flow rate.

Plastic-coated composite steel pipes are also called plastic-coated steel pipes. Plastic-coated steel pipes are based on steel pipes and use plastic powder as the coating material. The inner surface is melt-coated with a plastic layer, and the outer surface is coated with a plastic layer. Or steel-plastic composite products with anti-corrosion layer of other materials. This product is a newly deve...