Person's hand in glove opens or closes red gas valve on gas pipe Repair gas pipeline Ban of natural gas

Related tags:

• valve
• pipe
• maintenance
• pipeline
• repair
• gas
• maintenance service
• gasoline
• repair service
• fuel
• equipment
• industrial worker
• maintenance worker
• control
• worker
• service
• industry
• hand stop
• system
• person working
• help
• hand
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