国产亚洲精品福利在线无卡一_精品国产午夜av_草莓黄污视频_国产精品人妻熟女视频

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.