Ingenieur onder controle van de industrie koeltoren airconditioner is water koeltoren luchtkoeler HVAC van grote industriële gebouw om het luchtsysteem te controleren, het dragen van masker ter bescherming van de vervuiling. - Stockfoto’s en -afbeeldingen

Engineer under checking the industry cooling tower air conditioner is water cooling tower air chiller HVAC of large industrial building to control air system ,wearing mask for protect pollution.

Engineer checking blueprint of industry cooling tower air conditioner is water cooling tower air chiller HVAC of large industrial building to control air system ,wearing mask for protect pollution.

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

Engineer under checking the industry cooling tower air conditioner is water cooling tower air chiller HVAC of large industrial building to control air system ,wearing mask for protect pollution.

Engineer under checking the industry cooling tower air conditioner is water cooling tower air chiller HVAC of large industrial building to control air system ,wearing mask for protect pollution.

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

A engineer under checking the industry cooling tower air conditioner is water cooling tower air chiller HVAC of large industrial building to control air system.

Engineer under checking the industry cooling tower air conditioner is water cooling tower air chiller HVAC of large industrial building to control air system.

Portrait woman worker under inspection and checking production process on factory station by wearing safety mask to protect for pollution and virus in factory.

Engineer under checking the industry cooling tower air conditioner is water cooling tower air chiller HVAC of large industrial building to control air system.

Engineer under checking the industry cooling tower air conditioner is water cooling tower air chiller HVAC of large industrial building to control air system.

Portrait woman worker under inspection and checking production process on factory station by wearing safety mask to protect for pollution and virus in factory.

A Engineer industry wearing safety uniform ,black gloves and gas mask show hand signal no entry chemical dangerous area in industry factory work.

Portrait worker under inspection and checking production process on factory station by wearing safety mask to protect for pollution and virus in factory.