Man in safety gloves and orange coverall is openingclosing pipe valve

Related tags:

• pipeline
• valve
• pipe
• technician
• workwear
• petroleum
• plumber
• repairman
• maintenance technician
• inspector
• petrol
• gas
• fuel
• worker
• industrial worker
• engineer
• maintenance worker
• maintenance
• safety
• control
• oil
• gloves
• operating system
• system
• settings
• 4k
• man
• fix
• water
• 23+