flat springs. material:stainless steel,steel,brass,aluminum thickness: 0.1~5mm high precision tolerance:+/-0.02~0.05mm Application: flat springs, home appliance,computer ... , copper, carbon steel, manganese steel, tinplate.Machining thickness: 0.1~5mmPrecision tolerance: +/-0.02~0.05mmSurface finish: plating, polishing, brushing, coatingProduction process: progressive ...