Using a total scientific good quality management process, superior high quality and excellent faith, we get great name and occupied this field for IADC bit for hard rock, pdc rock bit factory, 311mm cone bit for drilling, tricone rock bit IADC437,drilling bit oil and gas IADC437. With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in this industries and other industries. The product will supply to all over the world, such as Europe, America, Australia,Dominica, panama,Barbados, Costa Rica.Our company always concentrate on the development of the international market. We now have a lot of customers in Russia , European countries, the USA, the Middle East countries and Africa countries. We always follow that quality is foundation while service is guarantee to meet all customers.