ASTM A182 F316L Lap Joint Flange, 150 Lb, Dn 40, RF Bo Yue Industrial(Shanghai)Co. Ltd Base Info Standard:ANSI, DIN, GB, JISType:Welding FlangeMaterial:Carbon SteelStructure:FlangesConnection:WeldingSealing Surface:RFManufacturing Way:Forging Description Pre:Polished and Galvanized Spikes Next:Titanium Flat Washer