Harbin Dongan High Precision Tube and Shaft Manufacturing Co., Ltd, as a Joint Venture jointly funded by AECC Harbin Dongan Engine Co., Ltd. (80% of shares) and Institute of Metal Research, Chinese Academy of Science (20% of shares), is an aviation enterprise that is dedicatedly engaged in the manufacturing of helicopter tail drive shaft assemblies and high precision aluminium alloy tubes, which are widely used in aviation, aerospace and other fields. 
The company has the registered capital of RMB 100 million and the total assets of RMB 440 million. The company has strong independent R&D and p