1. Permanent-magnet steel 2. Little vibration, large power 3. Low noise, high efficiency 4. Gear speed reducer for pump 1. Permanent-magnet steel 2. Little vibration, large power, energy saving 3. Low noise, high efficiency 4. gear motorRare Earth Permanent-magnet Synchronous Reducer for Transmission of Metering PumpUse NdFeB Permanent-magnet steel, little vibration, large power, energy saving, ...