Plate Flange, Flat Flange, Slip on Flange, Welding Neck Flange, Long Welding Neck Flange, Blind Flange, Socket Wel Materials:Type: welding neck, slip-on, threaded, lap-joint, socket welding and blindASTM A105A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2A516.60A694 (F42, F46, F48, F50, F52, F56, F60, F65, F70)A182 F304/304L, F316/316L, F316H, F310, F321A182 F11, F22,Manufacturing standards: API, ANSI, BS, JIS, UNI, MSS and SPPressure: ANSI class 150 to 2,500Size range: 1/2 to 56 inches (DN15 to DN1,400mm)