We have probably state-of-the-art output equipment, experienced and qualified engineers and workers, recognized good quality manage systems plus a friendly skilled income workforce pre/after-sales support for rock reamer for rotary rig, 251mm roller cone bit, IADC537 tci bit, TCI petroleum tricone bit,pdc bit manufacturer. Our products are regularly supplied to many Groups and lots of Factories. Meanwhile, our products are sold to the USA, Italy, Singapore, Malaysia, Russia, Poland, and the Middle East. The product will supply to all over the world, such as Europe, America, Australia,Jamaica, Auckland,San Diego, Kuwait.We have more than 200 staff including experienced managers, creative designers, sophisticated engineers and skilled workers. Through hard work of all employees for the past 20 years own company grew stronger and stronger. We always apply the client first principle. We also always fulfill all contracts to the point and therefore enjoy excellent reputation and trust among our customers. You are very welcome to personally visit our company.We hope to start a business partnership on the basis of mutual benefit and successful development . For more information please do no hesitate to contact us..