1.Material:aluminum 2.DIA:1-50mm 3.finish:oxidation 4.tolerance:+-0. ... machine and so on .(details show in below sheet)Material aluminum, mild steel, stainless steel, chrome steel, cold rolled sheet, bearing ... , high frequency, anodizing, clear anodizing,black anodizing ,chrome plating, black oxide coating, nickel plating, zinc plating, nitriding, degreasing, painting and so ...