The key to our success is Good Products Good quality, Reasonable Value and Efficient Service for roller cone bits for hard rock mining, used tricone bit IADC517, rotary roller cone bit, steel body pdc,tricone pilot bit. Our tenet is clear all the time: to deliver high quality product at competitive price to customers around the world. We welcome potential buyers to contact us for OEM and ODM orders. The product will supply to all over the world, such as Europe, America, Australia,Hamburg, Swiss,Southampton, Sudan.We have been seeking the chances to meet all the friends from both at home and abroad for the win-win cooperation. We sincerely hope to have long-term cooperation with all of you on the bases of mutual benefit and common development.