... treatmentZinc, Copper Nickel, Chrome, Tin, etc.ProcessstampingThinkness0.1mm--3mmUsageAutomotive/Car Thermostat, Switch, Electric Heating, Transformer, etcTypePrecision nonstandard parts(OEM Service ... washer,electric motor lock washer,spring washer,flat washer,copper washer,industrial washer,square washer,steel washer,metal flat washer ,thin flat washer,plain washer,brass washer.2.Our metal washer ...