... low noise, 3.smooth start-up, 4.small power consumption, 5.low failure rate. The use of ... self-clearance, low noise, smooth start-up, small power consumption, low failure rate. Can be as slip ... of the crane manufacturer 2. AQSIQ has issued class A crane manufacture, installation qualification of manufacturers 3. ... production lines of the crane 9. Equipped with a variety of drives to choose from, low noise ...