distillery grinder operator 酒厂磨床操作工

centreless grinder operator 无心磨床运营商

thread-grinder operator 螺纹磨床操作员

production metal grinder operator 生产金属粉碎机操作员

external cylindrical-grinder operator 外圆磨床操作

centreless cylindrical-grinder operator 无心磨床圆柱运营商

thread grinder set-up operator 螺纹磨床上设置操作员

universal grinder set-up operator 万能磨床建立操作员

jig grinder set-up operator 夹具磨床设置操作员