We goal to see good quality disfigurement within the manufacturing and provide effective support to domestic and overseas shoppers wholeheartedly for 251mm roller cones, oilfield drill bit, api HDD drilling bit, CHEAP VALVE,IADC537 tci bit. We play a leading role in delivering shoppers with premium quality goods great assistance and competitive rates. The product will supply to all over the world, such as Europe, America, Australia,Belize, Venezuela,South Korea, Albania.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.