... , API, JIS, JPI, General Description1,Carbon steel, stainless steel and alloy flanges, are manufactured as per the standards of BS ... ) Types we can supply: WN, SO, BL, plate, thread, socket and other special shapes6) Kinds of forging:a) Free forgingb) Die ... Galvanizedc) Painting with different colorsd) Just keep the flanges dry and clean as per customers' requirement8) Inspection:a) Factory in-houseb ...