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Hangzhou Tianli Air Separation Equipment Manufacturing Co., Ltd was established in 2004. Over the past 20 years, Tianli has been committed to the purification, separation, extraction, purification and mixing of gases. It has continuously developed high-tech industries and implemented innovation-driven strategies such as technological innovation, specialization and strengthening, and high-end customization, thus forging a development path of "specialization, refinement, distinctiveness and innovation". It has become one of China's professionally strong gas equipment manufacturers and suppliers in terms of scale and strength.

"Tianli Air Separation" the company's products cover four major industrial sectors: gas separation and purification industry (including nitrogen, oxygen, hydrogen, etc.), gas purification and recovery industry (including air, nitrogen, oxygen, hydrogen, CO₂, biogas, natural gas, Coke oven gas, vinyl chloride tail gas, etc.), green new energy special gas industry (including hydrogen, oxygen, argon, helium, etc.), decarbonization and capture and recovery industry (including CO₂, CO, etc.). The products are divided into 15 major series with more than 800 specifications and models, mainly including: PSA nitrogen generator and various nitrogen purification devices, PSA and VPSA oxygen generators, membrane nitrogen/oxygen devices, PSA hydrogen extraction devices, PSA decarbonization Device, CO₂ capture and recovery device, CO purification device, electrolyzed water hydrogen and oxygen purification device , Argon gas recovery and purification device, natural gas dryer, heatless (slightly hot) regeneration dryer, waste heat regeneration dryer, blast regeneration dryer, freeze dryer, combined low dew point dryer, explosion-proof type, high pressure type And special industries and special gas dryers, precision filters, automatic control equipment, control valves, etc.