Xi &＃039; an Qin-sen science and technology co, .ltd is located in the center of high development district which is in the east of x i′an shaan xi . Supported by the abundant technology resources of the high development district, we are making great efforts for studying 、 exploitation、 manufacture and distribution of the petroleum mechanical equipments, assistant appliances、 standard facilities and well tools. We have a great deal of outstanding and seasoned employees. Relying on the advanced equipments and techniques, also with the scientific manage theories and the spirit that is seriously dealing with matters relating to works , we have made good cooperation with many famous universities and military factories in xi&＃039;an. It creates a steady-going and reliable environment for our research development and exploitation. With our tenet that is Science and technology 、innovation 、 standardization and keeping ahead, we are enterprising and innovative; Our products are exported to America 、 Middle East 、 Australia and so on .In the international market we have acquired excellent reputation; The company have passed ISO9001—2000 international quality system certificate, also won the Xi&＃039;an “high development technology corporation certificate” and “high quality products certificate”, Moreover, many products have already become national sparking-plan＇s supporting projects, the products of QS07 DRILL BITS was listed into “torch planning” of our country. Sincerely welcome to visit our company and make businesses.