国产1区在线_一本精品一区二区三区_久久国产成人精品_一区二区三区自拍

Optional synchronous motorized spindle, high and low speed can output large torque, small vibration, low noise, dynamic response fast, smooth running, can effectively ensure the finish of the machining surface. The overall design makes the machine more compact, more beautiful and more efficient to achieve automatic processing.