The use of three-jaw chuck clamping thin-walled components often cannot meet the accuracy requirements in the lathe, need to use the six-jaw chuck.
在车床上采用三爪卡盘夹持薄壁零件往往不能满足精度要求，需要使用六爪卡盘。
3
The utility model discloses a three-jaw quick joint automatic opening and closing ball valve used for connecting a sprinkling standpipe and a sprinkler.