Carbide Insert, Machine Tool, Tungsten Carbide manufacturer / supplier in China, offering Made in China 30 Degree 35 Degree Carbide Bearing Rotor 17-4pH Stator for Halliburton 350 650 1200 Mwd, China Factory Tungsten Carbide Becu Bearing Rotors Stators Applied in Downhole Mwd Tools for Halliburton 650 1200 Series, China Factory 30 Degree 35 Degree Carbide Bearing Rotor 17-4pH Stator for Halliburton 350 650 1200 Mwd and so on.