The welded steel pipe type

　　1. Ordinary carbon steel wire casing (GB3640-88) is the industrial and civil building, installation machine equipment electrical installation for protection of the steel tube of wire.

　　2. Electric welding seam straight steel tube (YB242-63) is parallel with steel pipe welding longitudinal steel pipe. Usually divided into metric welding steel tube, electric welding tube, transformer cooling tubing, and so on.

　　3. Confined liquid transportation use a spiral seam submerged arc welding steel tube is the hot-rolled steel strip coil for tube rounds, often temperature spiral forming, with both sides of the sub merged arc welding, used for pressure liquid transportation of spiral arc-welded steel tube. Steel pipe pressure ability, the welding performance is good, through a variety of strict scientific inspection and test, the use of safe and reliable. Steel pipe diameter is big, high transmission efficiency, and can save laying pipelines investment. Mainly used to transport oil and gas pipeline.

　　We have adopted advanced production equipment and technologies to manufacture our seamless steel and erw pipe ,which can not only improve product quality, but also save raw materials. Our products have high strength, good toughness and resistance to corrosion.