Butt weld elbow

Welded elbow is a steel thermoforming or forging forming elbow. Its connection form is to directly weld the elbow to the steel pipe. The main manufacturing standard of the butt welding elbow is generally GB/T13401. -2005, GB/T12459-2005, ASME B16.9, SH3409, HG/T21635, HG/T21631, SY/T0510, GB/T10752-1995.