Commissioning Date	Plant name & its capacity	Site
1956.1	The first set of 30m3 /h ASP	Hangzhou General Mechanism Factory
1958.4	The first set of 3350m3 /h ASP imitating the Soviet Union
1958.7	The first set of 3350m3 /h ASP designed by ourselves
1982.8	6000m3 /h ASP of purification process by molecular sieve	Shanghai General Factory of Petrochemical
1982.10	11000m3 /h ASP of process with reversing heat exchanger	Baotou Steal Plant
1983	five rare gases recovery equipments of 6000m3/h ASP
1993	14000ASP with the booster turbine expander of the normal temperature purification process by molecular sieve	Xiangtan Iron & Steal CO.,LTD
2002.12	the first set of 30000m3 /h ASP designed by ourselves	Bao Steal CO.,LTD
2004.6	the first set of 50000m3 /h ASP designed by ourselves	Beitai Steal Company
2004.6	18000m3/h ASP of Internal compress process	Haolianghe Chemical Company
2004.10	20000m3/h large ASP of internal compress process	Changzhou Zhongtian Steal Company