... , silo, screw conveyor, compulsion type double horizontal mixer, measuring system, water supply system, air supply system, control system, main frame, etc ... and all kinds of construction of medium and big projects such as water conservancy, electric power, high way, bridge, port and airport ... ash weighing kg (0~600)±1% range and accuracy of water weighing kg (0~750)±1% range and accuracy of admixture ...