China's liquid air separation plant is widely used in metallurgy, petroleum, chemical industry, coal chemical industry, machinery, building materials and other areas of the national economy, the level of its development represents the strength of the country's economic development and also the level of industrial development, the import and export of liquid air separation plant has undergone a long journey from none to large.
Since 1956 China began to have liquid air separation plant manufacturing industry, began to meet the growing demand for industrial gases from all walks of life, in view of the then gas separation equipment manufacturing industry product
technology is not high and manufacturing capacity is insufficient, many departments rely on imported equipment to develop the national economy, in 1950s and 1960s China's main imports of oxygen generating machines for the former Soviet Union and Eastern European countries, imported liquid air separation plant specifications for 150, 800, 1000, 3350m³/h and other sizes of small air separation unit and large air separation plant. 800, 1000, 3350m³/h and other sizes of small air separation unit and large air separation plant, in 1970s, we began to import larger quantities of Japanese large air separation plant, specifications of 3200, 6000m³/h, etc., mainly for metallurgical industry development of steel.
