钣金工人专门研究钣金产品的现场安装或车间制造，或安装设备和系统的维护和维修。
Sheet metal workers may specialize in on-site installation or shop manufacture of sheet metal products, or servicing and maintenance of installed equipment and systems.
设备维修、现场组装。
同时要求现场存有充足的设备零部件，以减少例行的、预计的设备修理和维修上的时间损失。
Also it is expected that sufficient equipment spare parts will be stocked on location to minimize time lost on routine, predictable equipment repairs and maintenance.
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