Combined industrial gearbox (gear reducer, gearbox unit): 1.high efficiency; 2.low ... ; 3.long life-span; 4.compact struct Advantages of combined industrial gearbox (gear reducer, gearbox unit)1. High mechanical efficiency: 94 ... , LYC,ZWZ,NSK;10. Noise of gearboxes: 60-68dB. Combined industrial gearbox