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Male into the fuel tank stainless oil area confined space
Lift the drill head of tunnel boring machine into the construction shaft using a crane. Engineer and technician to control the method of lifting machinery with Ventilation pipe for confined space area
Top view male climbs up the stairs into the tank stainless chemical area confined space safety blower fresh air.
Top view male climbs up the stairs into the tank stainless chemical area inside confined space
Photo illustration for PTW or Permit to Work

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