... working efficiencyfine coal:3T/min;range coal:4T/min Performance characteristics 1,Working table controlled by microcomputer, water ... engine, battery, rotary motor, speed reducer, swivel connection, valve, tube accessible, can reduce time of maintenance. 3,Famous ... , accords with the requirements of ergonomics. 9,Ascendant performance of complete appliance, with extraordinary operation efficiency. 10, ...