1.offer various DC motors contained planetary motor, rc servo motor,etc 2.high quality and good price 3.OEM service available We Shenzhen HuaYueXin Precise ware Co., Ltd. is professional and technical experience in the production of following products: A. Powder metallurgy products are made of bronzeiron and stainless steel as raw materials which are as following:gear wheel,worm wheel,worm, ...