... :using forming a free forging machining and other processes to complete processing; the ... map production and processing.Material: 5083,2A50,5A05,2A10,6061,6063,2A50,5154. carbon steel, stainless steelSurface treatment ... : Transparent oil, rust-proof oil. Aluminum alloy forging flange 5083.5083,2A50,5A05,2A10,6061,6063,2A50,5154. carbon steel, stainless steel ...