... , 3105, 6061 we could prdouce different kinds of aluminum circles for cookware, 3003 alloy is good:aluminum circle,aluminum disc,aluminum round ... , 1070, 3003, 5052, 3105, 6061thickness:0.1-10mmdiameter: 20-1000mmSpecially for the cookware and the road sign 3003 aluminum circle for cookware and kitchenware