GOST-12821-80 Wn Stainless Steel Weld Neck Flange

　GOST-12821-80 Wn Stainless Steel Weld Neck Flange
　　Type: Welding Flange
　　Structure: Round
　　Sealing Surface: RF
　　Size : Dn15-Dn2000
　　Materials:Stainless Steel
　　Transport Package: Wood Case, Wood Pallet, Plywood Pallet.
　　Standard: ANSI, DIN, GB, JIS, GOST, BSW
　　Connection: Welding
　　Manufacturing Way: Forging
　　Standard: ANSI, DIN, BS, Uni, GOST, En1092
　　Trademark: Shengtian
　　Origin: China