他们受雇于机械，设备，汽车，汽车零部件，飞机及其他金属制品制造企业和机器加工车间。
They are employed by machinery, equipment, motor vehicle, automotive parts, aircraft and other metal products manufacturing companies and by machine shops.
符合食品机械的卫生标准，机器上与物料或包装袋接触的零部件均采用不锈钢或其他符合食品卫生要求的加工材料。
Comply with the hygiene standards of food machinery, machine and materials or packaging bag contact parts are stainless steel or other food hygiene requirements in line with processing materials.
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