Alloy: L1-L6,2A02,2A06,2A11,2A12,2A13,2A14,2A16,2A50,2A70,2A80,2A90,3A21,3003,5A02,5A03,5A05,5A06,5A12,5052,5083,6061 Temper: O,H12,H14,H16,H18,H19,H22,H24,H26,H32,H34,H36,H38,H39 Specification: 0.2-6.0X12-2400XC Adopted Standard: GB/T8544-97