Kunnossapitohenkilökunta tarkastaa lämmityskattilan putken painesensorit - Kuvapankin valokuva ja kuva

Technician engineer opens gate valve of pipeline on oil refinery. Worker adjusting heating systems. Maintenance services works on factory

Engineer checking oil pump and pressure gauge in industrial plant

Engineer maintenance works on oil factory. Industrial plant refinery. Services repairman adjustments on gas systems

Maintenance boiler. Technician engineer adjusts plumbing systems. Industrial work.

Technician on power industrial plant. Engineer operate valve for industrial oil pump system at station in factory. Worker on job

Worker in industrial plant using power oil cleaner. Engineer services refinery equipment

The picture was taken in Russia. Heating systems for apartment houses and heat meters.

Mechanical inspector turning gate valve on oil and gas factory. Refinery operator open oil pipeline

Technician engineer cheking probes pressure sensors on industrial power refinery plant. Worker measures values of manometers

Technician worker turns valve on industrial heating boiler system. Mechanic working on plant in safety helmet

Mechanical worker adjusting pressure manometers on industrial equipment. Technician works on boiler.

Mechanical engineer services industrial oil equipment on gas refinery

Operator of substation controls parameters electrical equipment. Checking technological process.

Technician maintenance of industrial oil pump on factory. Industry concept. Worker services gas equipment

Engineer working inside oil and gas refinery. Worker services maintenance oil compressor pump

Worker turning gate valve on boiler pipe. Maintenance heating station by technician specialist