The application scope of butt-welded flange is as follows: One, the length of the workpiece: such as strip steel, profile, wire, steel bar, rail, boiler steel pipe, oil and gas transmission pipeline butt welding. Two, annular workpiece welding: such as car rim and bicycle, motorcycle rim welding,

Standard classification of stainless steel flanges Specification: 1/2 "～80" (DN10-DN5000) Pressure rating: 0.25Mpa ～250Mpa (150Lb ～2500Lb) Commonly used standards: National standard: GB9112-88 (GB9113·1-88～GB9123·36-88)