... priceMaterial:Aluminum,Iron,Brass,Carbon steel,Bearing steel,stainless steel,PlasticSurface TreatmentPolishing,Zinc/Nickel/chrome ... Item NO. mechanical part processingMaterialsIron, aluminum, steel, copper, plastic, carbon steel, nylon, bronze, solder alloy, HSS ... etc.Testing machineDigital Height Gauge, caliper, Coordinate measuring machine, projection machine, roughness tester, hardness tester ...