With the development of market economy, the air separation unit is gradually changing its management concept from manufacturing unit to gas investment. The change of management thought and mechanism has brought about the development trend of China's gas market. Gas products are developing in an all-round way. In addition to oxygen, nitrogen, argon and other gases produced by air separation unit for gas industry, more than 200 main varieties and specifications of hydrogen, carbon dioxide, dissolved acetylene, electronic gas, special gas and chemical gas are also produced.
