API 6A blind flange working pressure: 2000~20000psi nominal bore: ... 80Types: plate, slip on, welding neck, blind, thread, socket weld flangeProcess: free forging, plate cutting, heat treat, ... Oil, Paint, Zinc, Hot dipped GalvanizedPacking: plywood cases and pallets or as per customers' requirementsSupply Capacity: 20,000 ... 8Stainless Steel:F304,F304L,F316,F316L,316Ti and etc API 6A blind flange