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China Liquefied Natural Gas (LNG) manufacturers Cryogenic Psa Liquid Nitrogen Generator 1. The core technical personnel of our company are all teachers from the Chinese Academy of Sciences, with reliable technology and high product stability. Our liquid nitrogen products have been sold to the United States, Peru, Southeast Asian countries, Germany, Lhasa, China, and are used stably at an altitude of 4,500 meters. 2. Liquid nitrogen Industrial applications In industrial production, liquid nitrogen obtained by fractional distillation of compressed liquid air can be used as a deep refrigerant. Due to its chemical inertness, it can be directly contacted with biological tissue and frozen immediately without destroying biological activity, so it can be used as a deep refrigerantChina Liquefied Natural Gas (LNG) manufacturers website:http://www.airseparatorunits.com/liquefied-natural-gas-lng/