... Mini worm gear and Worm gear set 1.Material:brass,steel 2.Supply spur gears,bevel gears, helical gears,worm gears. Mini ... worm gear and Worm gear set 1.Standard and nonstandard(meet customers’ requirments) ... carton steel,stainless stell , brass or aluminium and so on4.Finish: black finished, zinc-plated ... module gear,transmission parts,etc. Mini worm gear and Worm gear set