Aluminum circle discs can be divided in a few ways: alloy, application, thickness, surface treatment and even color. Their alloys used to cover 1050, 1060, 1070, 1100, 3003, 3004 and 5052, but recently 6061 and 7075 has also been taken into account, for the application scope of the circles are being widened with development of the manufacturing process. Application of …