In order to give you convenience and enlarge our business, we also have inspectors in QC Team and assure you our whole heartedly service and product for hard rock drilling bit iadc237, IADC517 cone bits for drilling, steel tooth bit 149mm, oil rig drilling bit iadc127,IADC517 269mm tricone bit. With a wide range, good quality, realistic charges and stylish designs,Our products and solutions are widely recognized and trusted by users and can fulfill continuously changing economic and social needs. The product will supply to all over the world, such as Europe, America, Australia,Georgia, Provence,Cambodia, Bolivia.We've been persisting in the business essence Quality First, Honoring Contracts and Standing by Reputations, providing customers with satisfying products and service. Friends both at home and abroad are warmly welcome to establish everlasting business relations with us.