... surface: sand blasting or polishing 1.Products Name : die cast cookware 2.Material : aluminum alloy , zinc alloy , steel alloy3.process : ... thickness and draft angles for die castings are as follows:Material Min. Thickness Min. draft angleAluminum 0.9 mm ( ... machine(200T), Die casting machine, Lathe, Grinding machine; CMM, Material detector, Hardness test device, spectrograph, etcSoftwareCAD, UG, Pro/E, ...