Young Caucasian worker in protective suit tightening the valve while standing in heating plant.

Related tags:

• valve
• pipeline
• industrial worker
• factory worker
• pipe
• industrial
• engineer
• manufacture
• maintenance service
• worker
• engineering
• fabrica
• maintenance
• adult
• man
• control
• compressor
• service
• steel
• gas
• labor
• fit man
• big
• 17+