... 4. High in Quality Gost12820-80 and Gost12821-80 Forged Carbon Steel Flange 1. Standards:ANSI,JIS,DIN,BS4504,SABS1123,EN1092 ... Zinc,Hot dipped Galvanized.6. Inspection:factory in-house self check or Third Party inspection7. Packing:No Fumigate or Fumigate Playwood ... .Supply Capacity:12,000/year Gost12820 and Gost12821-80 Forged Carbon Steel FlangeMaterial: Q235 16MnPayment Terms: 15% prepayment and the ...