北京长森石油科技有限公司
We are the leader of balance research of beam-pumping units.The PMTS efficiency testing meter, Effstar efficiency analizing software and Wellview oil field automatic system are highly praised by clients, and used more than 14 oil fields. In addition, the method of balance analysis which invented exclusively by us has become a standard of the CNPC.
Website：www.csoil.com