ASTM A105 ANSI B16.5 Rtj Blind Flange Forged 6 Inch Cl900 Bo Yue Industrial(Shanghai)Co. Ltd Base Info Model NO.:BY002Standard:ANSI, DIN, GB, JISType:Welding FlangeMaterial:Carbon SteelStructure:FlangesConnection:WeldingSealing Surface:RJManufacturing Way:Forging Description Pre:Combination Washer3 Next:ASTM A105 Blind RF Flange ANSI B16.5 Forged 1 Inch RF Cl900