... quality 4.ISO9001 verifi NamePrecision steel automatic lathe machining partsMaterials:Stainless Steel,Aluminum,brass,copper, ... ABS,iron,carton steel,alloy,rubber etcSizeCustomizedProcess automatic lathe machiningSurface treatmentZinc (Fe/Zn; Cu/Zn - white ... ,Passivation, Heat treatment Tolerance:0.01mm~0.1mmEquipmentautomatic lathe machining , General milling machines. General lathes, Punch ...