Persisting in High quality, Prompt Delivery, Aggressive Price, now we have established long-term cooperation with consumers from equally overseas and domestically and get new and old clients' large comments for drilling rig bit 114mm, IADC517 tricone dirll bit, rotary drill bit, CHINA OEM FACTORY,311mm IADC517 drill bit. We welcome you to visit our factory and look forward to establishing friendly business relationships with customers at home and abroad in the near future. The product will supply to all over the world, such as Europe, America, Australia,Bolivia, Chicago,Iran, Macedonia.We always insist on the management tenet of Quality is First, Technology is Basis, Honesty and Innovation.We are able to develop new products continuously to a higher level to satisfy different needs of customers.