In depth analysis of the air separation industry: from industrial gas separation to strategic resource security 1、 Industry Definition and Core Values The air separation industry is an industrial sector that uses air as raw material to separate, purify, and liquefy oxygen, nitrogen, argon, and rare gases (neon, helium, krypton, etc.) through physical methods such as low-temperature distillation, pressure swing adsorption, membrane separation, etc. Its core value lies in:...