... . 4.Machining tolerance:0.02mm Material we can work on: Aluminium: ASTM 380,2017,2011,2024,5052,5053,5056,6013,6061 ... , Clear anodize, Hard anodize, Natural oxidation, Black oxidation,hot galvanizedPlating: Zinc, Nickel,Silver,Tin,chrome,gold,Sand blasting.PolishingPaintingHeat treatmentEquipments:For ... lathe, Normal lathe, Drilling machine,Polishing machine, grind machine etc aluminium alloy casting