1,Tricone bit,rock bit,three tooth triconebit 2.certified by ISO, ... future through our consistent efforts.Detailed Product Description1,tungsten carbide insert tricone bit2.certified by ISO,API3.wide ... use of high strength high toughness carbide teeth,5. Hours in the rotary cone bit with the impact, crushing and ... shearing the role of broken rock.6. Cone bit to adapt to the soft, medium and hard of ...