... plantLiquid nitrogen output: 300L/HLiquid nitrogen purity: 99.999%Liquid nitrogen pressure of cold box: ≤0.7MPa(G)Total power: ... system 1set,Increase-pressure turbine expander , Rectification column system 1 set ,Electrically controlled system 1 set,liquid nitrogen vaporize ... and filling system 1 set,Cryogenic liquid nitrogen pump 1 set,KQ ...