... /2"--24" 2.Material:carbon steel 3.Certification:ISO9001 4.Standard:ANSI,DIN,JIS,ASME,BS,etc BLIND Flange1 Socket Welding ... ,Weld Neck Flange,Slip On Flange,Blind Flange,Threaded Flange,Non-standard flange; 2 We are a specialized manufactory in producing Flanges ... ;flange 3 Standard: ANSI Flange, MSS Flange, API Flange, AWWA Flange, DIN Flange ...