According to different shapes and uses, it can be divided into: groove type elbow, sleeve type elbow, double bearing elbow, flange elbow, reduced diameter elbow, idler elbow, internal and external teeth elbow, stamping elbow, pushing elbow, socket elbow, butt welding elbow, internal wire elbow, etc.Shandong Zhongao Steel Co. LTD. is a professional manufacturer of SSAW steel pipe with more than 30 years of experience. SSAW steel pipe is widely used in oil and gas transmission, urban heating pipe network, water supply pipeline, sewage, steel structure, bridge, foundation pile, port machinery and so on.1. Because the elbow has good comprehensive performance, so it is widely used in chemical industry, construction, water supply, drainage, petroleum, light and heavy industry, freezing, health, plumbing, fire, power, aerospace, shipbuilding and other basic engineering. 2. Material division: carbon steel, alloy, stainless steel, low temperature steel, high performance steel.All pipe fittings should be finished by shot peening to remove the iron oxide from the inner and outer surfaces, and then coated with anticorrosive paint. This is for export needs, in addition, but also to facilitate transportation to prevent corrosion and oxidation, to do this work.