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Everybody knows there is no such thing as normal. Shot of a scary figure confined under a sheet.
Welding arc argon worker male repaired metal is welding sparks industrial construction tank part manhole stainless oil inside confined spaces there is a watchman outside.
Working male inspection weld underground of tank equipment tunnel By using the flashlight in side confined.
Top view male climb up the stairs into the tank stainless chemical area confined space save lives with rescue rope safety
Before entering the confined space, the amount of air in the tank must be measured and properly ventilated.

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