Our firm since its inception, normally regards item high quality as company life, constantly make improvements to generation technology, improve product excellent and repeatedly strengthen organization total good quality management, in strict accordance with the national standard ISO 9001:2000 for milled tooth bits iadc216, pdc core bit, tungsten carbide drag bit, oilfield bit IADC437 12.25",diamond pdc bit. Our company has already set up a professional, creative and responsible team to develop clients with the multi-win principle. The product will supply to all over the world, such as Europe, America, Australia,Adelaide, Sweden,Botswana, Slovenia.The quality of our merchandise is equal to OEM's quality, because our core parts are the same with OEM supplier. The above items have passed professional certification, and we not only can produce OEM-standard items but we also accept Customized Merchandise order.