The key to our success is "Good Product Excellent, Reasonable Rate and Efficient Service" for Factory of Core Barrel with Tri-Cone Roller Drill Bit, Steel Body Pdc Bits, Rock Bits, Tungsten Carbide Drill Bits,Manual Tongs. We will supply best quality, the most market competitive price, for every new and old customers with the most perfect green services. The product will supply to all over the world, such as Europe, America, Australia,Georgia, Swedish,Argentina, Jordan.We integrate all our advantages to continuously innovate, improve and optimize our industrial structure and product performance. We will always believe in and work on it. Welcome to join us to promote green light, together we will make a better Future!