DTH hammer bit According to the different geological conditions and rock-hardness of the customers to produce the flat, convex and concave bits. According to the d
PDC non-coring bit PDC bit can be divided to core bit, comprehensive drilling bit and sintering matrix bit. This kind bit has the advantages of long useful life, high e
water well drilling rigs HGY-1500T IntroductionWidely used for railway, road, port, bridge, tunnel, engineering construction and water resources and hydropower engineering.Unexpired PR
drilling rigs HGY-1000 Introduction Widely used for railway, road, port, bridge, tunnel, engineering construction and water resources and hydropower engineering. Features 1
PDC coal mining pick bit IntroductionHunan Feiray has developed a new kind of PDC pick, and it has got several patents. The tip of this kind of pick uses PDC insert instead o
PDC spherical inserts Introduction We are the first manufacturer of special-shaped diamond enhanced insert in China,can made by your different requirements. The manufactur
