forged carbon steel blind flange: OEM service offered ISO9001authentication, 15 years of experience, ... and pr 1) ANSI/ASME B16.5 Steel flange,Blind flange,carbon steel flange2) Method:free forging,die forging, ... :150LB-2500LB SIZE:1/2"-72"4) Type:Plate,Slip on,Weld Neck,Blind,Lap Joint,Socket Weld,Threaded,5) Material ... Internal/ISO900110) Inspection:Internal/Third party forged carbon steel blind flange