Frequency induction heating pipe elbow is an advanced method. However, if the bending process properly, may be damaged pipe metal tissue relaxation phenomenon. This damage is manifested as a fine grain boundary cracks IF Bend manufacturer, have some adverse effect on the mechanical properties and service life of the pipe. IF Bend heating range is narrow, uneven temperature inside and outside the wall, in the course of pipe bends subjected to cold and hot temperatures, which is its inherent weaknesses. Editing pipe flange standard system has two main international standards system, namely the German DIN (including the former Soviet Union) as the representative of the European system and the pipe flange pipe flange to the United States as the representative of ANSI pipe flanges American system. In addition, there are Japanese JIS pipe flanges, but in the petrochemical industry in general used only for public works, and less impact in the international arena. Introduction pipe flanges countries now under: 1, Germany and the former Soviet Union as the representative of the European system of pipe flanges 2 IF Bend welcome your arrival, Inter-American system of standard pipe flanges to ANSI B16.5 and ANSI B 16.47 3 IF Bend, represented quality and security, the United Kingdom and France, standard pipe flanges, pipe flanges between the two countries have their own sets of standards. In summary, the internationally accepted standard pipe flanges can be summarized as two different and not interchangeable flange system: one to Germany on behalf of the European pipe flange system; another is the representative of the United States American pipe flange system. IOS7005-1 is a standard promulgated by the International Organization for Standardization in 1992, the standard is actually the United States and Germany, two series of pipe flanges merger of standard pipe flanges. IF Bend welcome you soon _ IF Bend _ Hebei billion gold piping supplied by Hebei billion gold piping. If you have any questions about this information or consultation, please contact us now! Our Company Name: Hebei billion Gold Pipe Manufacturing Co. (www.yijinguanjian.com) Contact: Alan Li Tong, or click on "Business League call" direct dialogue with us!