Our progress depends around the innovative machines, great talents and consistently strengthened technology forces for TCI bit factory IADC537.iadc537 9 7/8 inches rock bit, Tricone rock bit 8.5", pdc bit for well drilling, roller cone factory,pdc and tricone bit factory. Welcoming interested companies to cooperate with us, we look forward to having the opportunity of working with companies around the world for joint growth and mutual success. The product will supply to all over the world, such as Europe, America, Australia,Moldova, Romania,Sheffield, Sierra Leone.We supply professional service, prompt reply, timely delivery, excellent quality and lower price to our customers. Satisfaction and good credit to every customer is our priority. We focus on every detail of order processing for customers till they have received safe and sound products with good logistics service and economical cost. Depending on this, our products are sold very well in the countries in Africa, the Mid-East and Southeast Asia.