Hangzhou hangyang expander co., ltd.
Hangzhou hangyang material co., ltd
Hangzhou hangyang cryogenic container co., ltd.
Hangzhou hangyang cryogenic liquefaction equipment company
Jiangxi oxygen generator co., ltd
Hangzhou hangzhuang pump valve co., ltd
Hangzhou hangyang packaging co., ltd
Cryogenic engineering (Germany) Co., Ltd.
He' nan China southern airlines oxygen co., ltd
Hubei hang oxygen co., ltd
Hangzhou hangyang jiande gas co., ltd
Jilin hang oxygen co., ltd
Hangyang alloy fengtou co., ltd
Hangzhou cryogenic gas science & technology company Hangzhou Hangzhou oxidation medical treatment engineering co., ltd
Lin' an hangyang corporation management co., ltd
Jiujiang xunfu gas co., ltd
Jiujiang Dafu transport co., ltd
Hangzhou hangyang cryogenic liquefaction engineering co., ltd
Chengde hang oxygen co., ltd
Bengbu Hangyang Fuel Gas Co., Ltd. Beijing Huachuang Hangyang Distributed Control System Co., Ltd.
Hangzhou hangyang air separation spare parts co., ltd
Hangzhou hangyang compressor co., ltd
Hangzhou hangyang heat exchanger equipment co., ltd
Hangzhou hangyang casting co., ltd
Hangzhou hang yang Duan re co., ltd
Hangzhou hangyang electroplating heat treatment co., ltd
Hangzhou hangyang steel structure equipment installation co., ltd
Hangzhou hangyang storage and transportation co., ltd
Hangzhou hangyang environmental protection complete sets equipment co., ltd
Elos. Special organization
Hangzhou hangyang Renhe electroplating co., ltd