precision turned machining parts 1.material:carbon steel,stainless steel,aluminum alloy ... structure, auto parts, fifth wheel, garage, fasteners, crane parts, elevator parts, machining parts, mouldsMaterialcarbon steel, stainless steel, aluminum alloy, copperProcedureCutting,stamping,punching,threading,bending ... , hacksaw cutting machine, rolling machine and so on. precision turned machining parts