Air separation units and cold boxes, including oxygen (nitrogen, argon) liquefaction cold box, many of them are liquid ASU or inter-pumping process. Products manufactured according to ASME code are exported together with air separation units by Air Products, and manufactured according to CE specifications are exported to Europe together with Air Liquide's air separation units. The biggest ASU size Zhongtai's products applied to is 120,000NM3/H.

Besides, Zhongtai created and maintained the leading place in numerous items in China:

1. The highest design pressure for big size plate-fin heat exchanger. The maximum design pressure for delivered products has been 10.0 MPa.

2. The lowest helium leak rate achieved.

3. The biggest size and most complete series for liquid nitrogen washing cold box.

4. The biggest stand-alone natural gas liquefaction unit with MRC process.

5. At the same time, Zhongtai is the long standing supplier for Air Products and Air Liquide. Our products based on ASME code or CE regulation have been exported to 21 countries and regions including USA, Europe, India and Russia, etc.