China National Petroleum Corporation ( CNPC ) Jichai Power Company Limited founded in 1920, is the only power equipment manufacturer affiliated to CNPC and the world's mainstream drilling power service provider. The main business of Jichai is R & D and manufacturing of internal-combustion engine, compressor, and relative power equipment. The main technical index of leading products approaches or reaches the world`s advanced level, Jichai market share is in the forefront of the same industry