蒸汽管道工和管道装配工铺陈，组装，制造，维护，故障排除和修复携带水，蒸汽，化学品和燃料的加热，冷却，润滑等工艺管道系统的管道系统。自动喷水灭火系统安装工为了防火，在建筑物内制造，安装，测试，维护和修复水，泡沫，二氧化碳，干化学自动喷水灭火系统。蒸汽管道工，管道装配工和自动喷水灭火系统安装工受雇于工厂，厂房及类似机构的维修部门，喷水灭火系统承包商，或者他们也可成为自雇人士。

Steamfitters and pipefitters lay out, assemble, fabricate, maintain, troubleshoot and repair piping systems carrying water, steam, chemicals and fuel in heating, cooling, lubricating and other process piping systems. Sprinkler system installers fabricate, install, test, maintain and repair water, foam, carbon dioxide and dry chemical sprinkler systems in buildings for fire protection purposes. Steamfitters, pipefitters and sprinkler system installers are employed in maintenance departments of factories, plants and similar establishments, and by pipefitting and sprinkler system contractors, or they may be self-employed.

Read More

管道工安装，维修和保养管道，装置和用于住宅，商业和工业建筑的配水和废水处理等水暖器材。他们受雇于工厂，厂房及类似机构的维修部门，也可受雇于水暖承包商，或者他们可能是自营企业。
Plumbers install, repair and maintain pipes, fixtures and other plumbing equipment used for water distribution and waste water disposal in residential, commercial and industrial buildings. They are employed in maintenance departments of factories, plants and similar establishments, by plumbing contractors, or they may be self-employed.

Read More

有线电视服务技术人员安装，维护和修复家庭和商业建筑内的有线电视和卫星电视及互联网信号和相关设备。有线电视维修技术人员维护和修理有线电视传输和配电系统及相关硬件。他们受雇于有线电视和卫星电视公司。

Cable television service technicians install, maintain and repair cable and satellite television and Internet signal and associated equipment in homes and commercial buildings. Cable television maintenance technicians maintain and repair cable television transmission and distribution systems and associated hardware. They are employed by cable and satellite television companies.

Read More

电信安装工和维修工人安装工，测试，维护和维修电话，电话交换设备和通过各种媒体，包括光纤，微波，无线电和卫星传输和处理的语音，视频信号及其他数据的电信设备。他们受雇于电话和其他电信传输服务场所。

Telecommunications installation and repair workers install, test, maintain and repair telephones, telephone switching equipment and telecommunications equipment related to transmission and processing of voice, video signals and other data over a variety of media including fibre optics, microwave, radio and satellite. They are employed by telephone and other telecommunications transmission services establishments.

Read More

通信线路及电缆工人安装，维修和保养电信线路和电缆。他们受雇于有线电视公司和电话及其他电信服务部门。

Telecommunications line and cable workers install, repair and maintain telecommunication lines and cables. They are employed by cable television companies and by telephone and other telecommunications services.

Read More

电源线和电缆工人建造，维护和修复架空线和地下电力传输和配电系统。他们受雇于发电站，输电和配电公司，电业承办商及公用事业委员会。

Electrical power line and cable workers construct, maintain and repair overhead and underground electrical power transmission and distribution systems. They are employed by electric power generation, transmission and distribution companies, electrical contractors and public utility commissions.

Read More

电力系统电工安装，维护，测试和修复发电站，输电和配电系统设备及仪器。他们受雇于发电站，输电和配电公司。

Power system electricians install, maintain, test and repair electrical power generation, transmission and distribution system equipment and apparatus. They are employed by electric power generation, transmission and distribution companies.

Read More

工业电工安装，维护，测试，故障排除和维修工工业电气设备及相关的电气和电子控制。他们受雇于电业承办商和工厂的维修工部门，工厂，矿山，船厂和其他工业场所。

Industrial electricians install, maintain, test, troubleshoot and repair industrial electrical equipment and associated electrical and electronic controls. They are employed by electrical contractors and maintenance departments of factories, plants, mines, shipyards and other industrial establishments.

Read More

此单元组的电工铺陈，组装，安装，测试，故障排除和修复建筑物和其他结构内的电线，灯具，控制设备及相关设备。他们受雇于电业承办商及建筑物和其他场所的维修部门，或者他们亦可称为个体经营者。

Electricians in this unit group lay out, assemble, install, test, troubleshoot and repair electrical wiring, fixtures, control devices and related equipment in buildings and other structures. They are employed by electrical contractors and maintenance departments of buildings and other establishments, or they may be self-employed.

Read More

焊工操作焊接设备焊接亚铁金属和有色金属。此单元组还包括操作预先组合好的生产焊接，钎焊和锡焊设备的机器操作员。他们受雇于结构钢和钣金，锅炉，重型机械，飞机，船舶和其他金属制品的生产企业，以及焊接承建商和焊接车间，或者他们亦可自主经营。

Welders operate welding equipment to weld ferrous and non-ferrous metals. This unit group also includes machine operators who operate previously set up production welding, brazing and soldering equipment. They are employed by companies that manufacture structural steel and platework, boilers, heavy machinery, aircraft and ships and other metal products, and by welding contractors and welding shops, or they may be self-employed.

Read More