... 1000mm, 1200mm, 1220mm or optional3. Length of aluminum coil : Optional4. AA of aluminum coil : 1100.1050,1060,1070,1200, 3003, 3105 ... obtain processed product with lowest strength H12,H2223-3030-361/4 hardnessH12 : First anneal in the middle and tehn ... product with 3/4hardness; H26 :Directly anneal for 3/4 hardness productH1840above45 abovehardHard ,suitbale for processing hardness products wel ...