Shenyang zhongfu kejin pressure Vessels Co.,LTD. has developed and produced pressure vessels more than 35 years. It is a joint venture enterprise of CNBM(China National Building Material) and IMRCAS (Institute of Metal Research, Chinese Academic of  Sciences).

Kejin's business operation includes manufacturing and sales of the B1 and B3 grade pressure Vessels and after-sale service; Developing and studying the advanced materials and technology about the B1 and B3 grade pressure Vessels; technological development; technology transfer, technical advice and technical service, etc .

Kejin is producing various type of pressure vessels, including high pressure seamless Aluminum Alloy cylinders, Aluminum Alloy liners for carbon fiber wrapped cylinders, fully wrapped carbon fiber wrapped cylinders, portable oxygen respirator and sample cylinders. The annual production of all kinds of cylinders is 500,000.