Stainless Flange (Forged) , SS304, SS316 Hiawa Hardware & Machinery Co., Ltd. Base Info Model NO.:DIN, ASME, JISStandard:DINType:Welding FlangeMaterial:Stainless SteelManufacturing Way:Forging Description Pre:Asme B16.5 Wn 4" RF Flange Next:DIN934 Hex Nuts