Fiatal mérnök dolgozik a nagy gyár, Technikus védő egyenruhában és keménykalap ellenőrzési hőmérséklet csövek - Stock fotó és kép

Young engineer working at large factory,Technician in protective uniform and with hardhat checking temperature in pipes

Young engineer working at large factory,Technician in protective uniform and with hardhat checking temperature in pipes

Young engineer working at large factory,Technician in protective uniform and with hardhat checking temperature in pipes

Young engineer working at large factory,Technician in protective uniform and with hardhat checking temperature in pipes

Engineer work place to keep liquid helium, preventive maintenance schedule checking

Young engineer working at large factory,Technician in protective uniform and with hardhat checking temperature in pipes

Young engineer working at large factory,Technician in protective uniform and with hardhat checking temperature in pipes

Young engineer working at large factory,Technician in protective uniform and with hardhat checking temperature in pipes

Engineer work place to keep liquid helium, preventive maintenance schedule checking

Environmental engineers work at wastewater treatment plants,Male plumber technician working at water supply

Asian Maintenance engineer at the waste water management system of a huge factory,maintenance checking technical data of heating system equipment,Thailand people

Maintenance technician at a heating plant,Petrochemical workers supervise the operation of gas and oil pipelines in the factory,Engineers put hearing protector At room with many pipes

Environmental engineer working at wastewater treatment plant, Water recycling plant for reuse

Engineers work place to keep liquid helium,preventive maintenance schedule checking,Thailand people

Engineer work place to keep liquid helium, preventive maintenance schedule checking

Environmental engineers work at wastewater treatment plants,Male plumber technician working at water supply