... :1-90 mm 3.Small module,complexity 4.OEM,Non-standard Powder metallurgy gear(PM gear) HENGKO LTD is specialized in manufacturing ... components,include various kinds of gears and gear box.HENGKO Powder Metallurgy gear includes: bevel gear, gear, gear box, planetary gear ... gear reducer, all kinds of precision gears.HENGKO has new standard factory buildings, up to date first class processing, testing and ...