Our company since its inception, constantly regards product or service high quality as business life, continually improve creation technology, make improvements to product high-quality and consistently strengthen business total high-quality management, in strict accordance together with the national standard ISO 9001:2000 for IADC537 15 1/2 tricone bit, CHINA VALVE OEM FACTORY, DIN BUTTERFLY VALVE, rotating head factory,drilling drag bit. We're searching ahead to setting up long-term company associations with you. Your comments and solutions are remarkably appreciated. The product will supply to all over the world, such as Europe, America, Australia,United Arab emirates, Bhutan,Nigeria, Portugal.Our company has built stable business relationships with many well-known domestic companies as well as oversea customers. With the goal of providing high quality products to customers at low cots, we are committed to improving its capacities in research, development, manufacturing and management. We have honored to receive recognition from our customers. Till now we have passed ISO9001 in 2005 and ISO/TS16949 in 2008. Enterprises of quality of survival, the credibility of development for the purpose, sincerely welcome domestic and foreign businessmen to visit to discuss cooperation.