Qingdao Guomao Industrial Controls&Drives Equipment Co.,Ltd is a manufacturing and trading enterprise group. Our main products are ZLYJ??SYJ Series Gear Reducer for Plastic Extruding Machine, SZ Series Gearbox for Conical Twin-screw Rod Extruder, B?? Series Cycloidal speed reducer, ZDY??LY??SY??FY Series Cylindrical Gear Reducer, DBY??CY Series Bevel Gear Reducer, PV Series General Gear Box, GX Series Planetary Reducer, GR Series Helical Geared Motor, GK Series Helical Bevel Geared Motor, GF ...