Based on the design of THE LESP, our team has successfully developed the THE ESPCP for extracting gas from gas layers, which is used by Petro china Coal bed Methane Company limited .  There is no similar product that can compete with the two patented products mentioned above on the market of oil equipment.  Our products not only have operated for a long period of time in Mainland China oil field but also sold to the USA, which is the first that a Chinese oil mining equipment to be used in oil fields in the USA.  Our company is the only one with experience in R&D, production, and selling abroad in the business of oil mining equipment and we continuously devoted ourselves for improvement and innovation.