name:aluminium disc alloy:1060,1100,3003 etc tempter:H16,H18,H24,O thickness:0.42mm~5mm Aluminum discThe aluminum circles ... number 1060 ,1100, 3003, temper H24, H16 of H18, OExtrusion circlesThickness range from 1.0mmto 5.0mm, diameter 30mm to 200MM including1060 ... ,1100,3003 and other alloys, the temper of H22, O, of H18 ...