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white, grey, medical, oxygen pressure, oxygen, pressure regulator, oxygen lax, bottle, gas bottle, artificial respiration, beamtmungsgerät

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pressure gauge, oxygen, industry, caliber

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gray propane tanks, gas, gas bottle, propane, liquefied petroleum gas, oxygen, explosive, explosion danger, explosion, pressure, metal

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oxygen, oxygen lax, artificial respiration, compressed air, bottle, hospital, beamtmungsgerät, help, pressure regulator, first aid

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