sese成人网,日韩少妇人妻vs中文字幕,成年版毛片免费区,国偷自产AⅤ一区二区三区

Based on the stress analysis design of high rigidity tool bar, effectively suppress the vibration tool to achieve stable machining. Large - capacity chip - discharging groove plays a good chip - discharging performance.

Product features

Good chip discharge performance

High rigidity tool bar designed based on stress analysis