... certain pressure, carbon molecular sieve has different oxygen/nitrogen adsorption capacity, i.e. much more oxygen adsorption ... as per pressure change, carries out oxygen/nitrogen separation and produces nitrogen with desired purity.Applications:1. Metallurgy: ... tape, battery, electronic alloy material, etc.(2) Nitrogen plant for food protectionTechnical indexes: Model NoPGPNFlow50-2000Nm3/hPurity99 ...