Global supplying of drilling rock bits and tools more than 20 years, footmarks of CORIDER Petroleum Machinery spreads all over the world from Brazilian oilfield, Peru mines, Kenyan geothermy to oil&gas well drilling in Western Asia, the applications widely including oil, gas, geothermy, HDD, water well drilling, we are working to reach the most cost effective of drilling per meters. The production technology and equipment of our company is advanced and cutting edge in the world, the products are strictly complying with API specifications and ISO9001, all the production are following international uniform standards. The cost of drilling projects is higher and higher as the deeper and more complex situations prevalently worldwide, penetration rate and time of staying at bottom of rock bits is much more important. CORIDER wins its reputations by their high level products, experienced solutions and warm services.