Based on domestic market and expand abroad business is our enhancement strategy for 120mm tricone roller cone, Tricone drilling bit, Tricone drilling bit, METAL SEAT GATE VALVE,non-coring pdc drag bit. To better expand market, we sincerely invite ambitious individuals and companies to join as an agent. The product will supply to all over the world, such as Europe, America, Australia,Angola, Porto,Lebanon, Sri Lanka.All the employees in factory, store, and office are struggling for one common goal to provide better quality and service. Real business is to get win-win situation. We would like to provide more support for customers. Welcome all nice buyers to communicate details of our products with us!