Yuanheng was founded in 1994 and located in the new technical development area of Baoji, Shaanxi province, covering an area of 6350 sqm. With a professional team of 120 people, Yuanheng is specialized in the design, manufacture and sales of drillstem test tools（DST Tools）, ground manifold,  completion tools and other oilfield equipments. Some of our product filled the gap in domestic market .

With higher quality and competitive price, Yuanheng DST tools  occupy more than 70-80% of the domestic market .We are proud to be the qualified supplier of  CNPC (China National Petroleum Corporation)、SINOPEC CORP（China Petroleum and Chemical Corporation.）、CNOOC (China National Offshore Oil Corporation) etc. Nowadays, the good reputation of Yuanheng DST Tools begins to gain the great market in the oil-producing countries like Pakistan, Iran, Indonesia, Canada ,etc.

In the early 2000, our company gained the certificate of ISO9001:1994 from Chinese quality assurance center of authentication and we updated to ISO9001:2000 in 2003. In 2007, Yuanheng was certificated “high tech” enterprise.

Yuanheng has impeccable approaches and checkout equipments. Besides, Yuanheng has developed particular productive technology and owned a professional crew with perfect mastery of manufaturing and integrated network of after sale service and staffs, which give client no anxiety when using Yuanheng product.

Regarding “to provide best products and services to ensure the long-term business survival and development” as our mission, Yuanheng has been creating rewarding benefits to customers, colleagues and society.