亚欧洲精品视频,激情久久久久久久,中中文字幕av在线,日日天天狠狠

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.