China Air Separation unit Co., Ltd., DEAR air separation has cooperated with many large-scale enterprises for many years, and the operation of the unit is stable, safe and reliable. DEAR air separation provides solutions for air separation unit in metallurgy, chemical industry, chemical fertilizer, petroleum, non-ferrous, new materials, photovoltaic, coal chemical industry, circular economy, environmental protection, ceramics, building materials and other industries to achieve win-win development with customers.