... strength: big density Cast & ForgedWe can produce gears, gear boxes, worm, worm wheel, etc.We Shenzhen HuaYueXin Precise ware Co., Ltd. is ... steel as raw materials which are as following:gear wheel,worm wheel,worm, metals injection shaping; B. Plastics products are made of ... as raw materials.The products concerning as plastic gear wheel,worm wheel and other precise injection plastics; C. And provide ...