Using a total scientific good quality management process, superior high quality and excellent faith, we get great name and occupied this field for iadc835 8.5″ tricone bit factory, three cones bit, 215.9mm roller cones, 6"TCI bit IADC417,steel tooth tricone bit 394mm. Our products have exported to North America, Europe, Japan, Korea, Australia, New Zealand, Russia and other countries. Looking forward to build up a good and long term cooperation with you in coming future! The product will supply to all over the world, such as Europe, America, Australia,Marseille, The Swiss,Johor, Bolivia.With its rich manufacturing experience, high-quality products, and perfect after-sale service, the company has gained good reputation and has become one of the famous enterprise specialized in manufacturing series.We sincerely hope to establish business relation with you and pursue mutual benefit.