... .prompt delivery 5.non-standerd parts Item Nowaterproof machine screws Materialsiron,aluminum,steel,copper,plastic,carbon steel,nylon,bronze,solder alloy,HSS ... equipmentsCNC machining center,CNC lathe,grinding machine,automatic lathe machine,conventional lathe machine,EDM,wire-cutting machine,CNC bending machine etc.Test machinedigital height guage, caliper ...