... ,polishing,shot-blasting,CNC 2.STANDARD:GB 223,ASTMB247 ALUMINUM FORGING RING 1) ALLOY: 50522) DIMENSION: as per customer’s request3) SURFACE ... RANGE: Aluminum, Aluminum Alloy Plate, Strip, Foil, Profile, Tube, Bar, Forging, Die cast, Lead tube welding, Colored Coating Aluminum Plate, Lead ...