We are experienced manufacturer. Wining the majority from the crucial certifications of its market for pilot bit for foundation, PN16 METAL SEAT GATE VALVE, coal mining tricone bit, pdc bit for well drilling,pdc drill 8.5". Now we have experienced manufacturing facilities with extra than 100 employees. So we could guarantee short lead time and high quality assurance. The product will supply to all over the world, such as Europe, America, Australia,Brisbane, Latvia,Czech republic, Mongolia.To meet the requirements of specific customers for each bit more perfect service and stable quality merchandise. We warmly welcome customers around the world to visit us, with our multi-faceted cooperation, and jointly develop new markets, create a brilliant future!