... Item Nosmall spur gears Materialsiron,aluminum,steel,copper,plastic,carbon steel,nylon,bronze,soldder alloy, ... machining,drilling,turning,grinding,tapping,mould design and processing,casting,sheet mental working etc.Delivery7-15 ... ,production and technical service,mould development and processing etc.If any questions,please feel free ... receive your valued detail specification. small spur gear