I plant to produce flanges, seamless steel elbows, reducers, tees, crosses as the main products, production of various types of stainless steel flanges, large diameter flanges welded elbow, high pressure flanges, The new standard flange manufacturers of large diameter welded elbow, GB flange, flat welding flanges, carbon steel flanges and other products. 18 kinds of material, more than 360 specifications. Φ32mm-Φ920mm available in high alloy seamless elbow, DN300-DN2700 steel plate welded flange below the elbow and Φ1200mm products. The basic process is carbon steel elbow: First welding a polygonal cross-sectional polygonal ring shell or both ends closed polygonal fan shells, washed over the internal pressure of the media, applying less pressure, under pressure, including the role of the cross-sectional polygon becoming round, eventually becoming a circular ring shell. According need wholesale welded elbow, a circular ring shell can be cut four or six 90 ○ 60 ○ elbow elbow elbow or other specifications, the process for the manufacture of elbow and elbow in diameter than the inside diameter Any Size Large elbow greater than 1.5, is an ideal method currently manufacture of large steel elbow. The advantage of the carbon steel elbow making process mainly in the following aspects: (1) without the tube welded elbow manufacturers as raw materials, saving pipe equipment and tooling costs, and get arbitrarily large diameter and wall thickness relatively thin steel elbow. (2) the blank is flat or developable surface, thus cutting simple, easy to ensure accuracy, easy assembly welding. (3) For these two reasons, the manufacturing cycle can be shortened, the production cost is greatly reduced. Because does not require any special equipment, especially for on-site machining of large steel elbow. (4) carbon steel elbow for oil, gas, chemicals, utilities, construction and other industries boiler piping system [Shaanxi] _ Wholesale butt welded elbow elbow _ Hebei Hebei Cathay Cathay is provided by the most professional. Welcome to consult Hebei Cathay Pacific Pipeline Equipment Co. (www.hbgtgd.com), be sure to specify when contact is through the "Business Alliance Member" see, thank you! Contact: Liu