Containers used for transporting liquid nitrogen at less than 25 psig (40 psia) pressure are UN/DOT authorized containers.
用于运输压力小于25psig(40psia)液态氮是UN/DOT认可。
Containers used for transporting liquid nitrogen at less than 25 psig (40 psia) pressure are UN/DOT authorized containers.
用于运输压力小于25psig(40psia)液态氮是UN/DOT认可。
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