• Development of membrane Press for Hydrogenation Station；

• Research and development of 40000Nm3/h large pressurized oxygen compressor；

• Labyrinth oxygen compressor has been developed successfully.；

• Establish a remote monitoring platform；

• The first oxygen compressor equipped with explosion-proof wall is exported to the United States.；

• Development of large horizontal process Compressor；

• Move to Lin'an manufacturing base；

• Company restructuring, the establishment of Hangzhou Hangzhou oxygen Compressor Co., Ltd.；

• Piston Compressor Factory established；

• The oxygen compressor won the title of excellent product.；

• The first non-oil lubricated compressor has been successfully developed.；

• Moved to Dongxin Road, renamed Hangzhou oxygen Machine Factory, and set up the first machining workshop.；

• Zhejiang Iron Factory established；