four jaw concent ric chuck的意思|示意
美 / /
英 / /
四颚一致ric卡盘
four jaw concent ric chuck的网络常见释义
四爪同心卡盘 四爪同心卡盘 four jaw concent ric chuck; four-jaw concentric chuck 动力卡盘用缸及阀 cylinder and valve for power chuck .