... designs are welcome. 3.distributorship offered 4.OEM servic internal spline shaft Item Nointernalsplineshaft Materialsiron,aluminum,steel,copper,plastic,carbon steel,nylon ... machining center,CNC lathe,grinding machine,automatic lathe machine,conventioal lathe machine,milling machine,drilling machine,EDM,wire-cutting machine,CNC bending machine etc.Testing Machinedigital height gauge ...