Nitrous oxide; nitrogen; solidified gases for industrial purposes; ammonia for industrial purposes; oxygen for industrial purposes; hydrogen; oxygen; carbon monoxide; fluorine; iodine for industrial purposes; carbon dioxide for industrial purposes; liquid air; milk ferments for industrial purposes; chemical substances for preserving foodstuffs; liquid carbon dioxide; dry ice [carbon dioxide]; protective gases for welding; chemical additives for food manufacturing; helium; argon; alcohol; acti...

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