forged carbon steel blind flange: OEM service offered ISO9001authentication, 15 years of experience, good ... quality and pr 1) ANSI/ASME B16.5 Steel flange,Blind flange,carbon steel flange2) Method:free forging,die forging,rolling3 ... :1/2"-72"4) Type:Plate,Slip on,Weld Neck,Blind,Lap Joint,Socket Weld,Threaded,5) Material: Carbon steel:A105 ...