Our well-equipped facilities and excellent quality control throughout all stages of production enables us to guarantee total customer satisfaction for well drilling bit 9 1/2″tricone bit iadc537 9.5″, 311mm cone bit for drilling, well drilling head iadc127, API607 CERTIFICATE,hybrid drill bit manufacturer. Standing still today and looking into the future, we sincerely welcome customers all over the world to cooperate with us. The product will supply to all over the world, such as Europe, America, Australia,Moldova, United Arab Emirates,Iceland, Miami.Our company regards reasonable prices, high quality,efficient production time and good after-sales service as our tenet. We hope to cooperate with more customers for mutual development and benefits in future. Welcome to contact us.