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  • Nitrogen is a colorless and odorless gas under normal conditions and is usually non-toxic. Nitrogen accounts for 78.12% (volume fraction) of the total air. The gas density under standard conditions is 1.25g/L. Nitrogen is difficult to dissolve in water. Under normal temperature and pressure, only 0.

    2021.12.06

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  • 1 What is a gas busIn order to improve work efficiency and safe production, the gas bus bar combines the gas sources of a single gas supply at a single gas point, and combines multiple gas-containing containers (high-pressure steel cylinders, low-temperature dewars, etc.) to achieve centralized gas

    2021.11.09

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