... ,A182F5,A182F11,.ect. Size:1/2''-60'' Pressure:150lbs-2500lbs flat welding flangeMaterial:A105/Q235,304/304L,316,316L,A182F5,A182F11 ... :150lbs-2500lbs Facing:RF/FF/Material:A105/RST37.2/C22.8/Q235,304/304L,316,316L,A182F5,A182F11,.ect.Size:1 ... flow whenusing a socket welding flange. YH-0002 stainless stell flat welding flange