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Factory Roller Cone Bits Single Roller Cones Bit Tricone Product Description Size 140mm 8 1/2 inch roller core bits part Machine Type piling tool/ hole opener roller bit Certification ISO & API Material Carbide ... ادامه مطلب

Directional-Type Tricone Bit Cone Roller Cone Bit Cone Roller Machine Bit Product Description Size 140mm 8 1/2 inch roller core bits part Machine Type piling tool/ hole opener roller bit Certification ISO & API ... ادامه مطلب

Factory New Roller Cone Bits Single Roller Cones Bit Tricone Product Description Size 140mm 8 1/2 inch roller core bits part Machine Type piling tool/ hole opener roller bit Certification ISO & API Material ... ادامه مطلب

China Power Factory Single Roller Cone Roller Cone Bit Product Description Size 140mm 8 1/2 inch roller core bits part Machine Type piling tool/ hole opener roller bit Certification ISO & API Material Carbide ... ادامه مطلب

Power Factory Roller Cone Drill Bit Single Roller Cone Product Description Size 140mm 8 1/2 inch roller core bits part Machine Type piling tool/ hole opener roller bit Certification ISO & API Material Carbide ... ادامه مطلب

China Factory Hard Rock Roller Cone Bit Single Cone Rock Roller Bit Product Description Size 140mm 8 1/2 inch roller core bits part Machine Type piling tool/ hole opener roller bit Certification ISO & API ... ادامه مطلب

China Power Factory Cone Roller Machine Bit Product Description Size 140mm 8 1/2 inch roller core bits part Machine Type piling tool/ hole opener roller bit Certification ISO & API Material Carbide Processing ... ادامه مطلب

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China Power Factory Single Roller Cone Roller Cone Bit Product Description Size 140mm 8 1/2 inch roller core bits part Machine Type piling tool/ hole opener roller bit Certification ISO & API Material Carbide ... ادامه مطلب

Power Factory Single Roller Cone Roller Cone Bit China Hebei Product Description Size 140mm 8 1/2 inch roller core bits part Machine Type piling tool/ hole opener roller bit Certification ISO & API Material ... ادامه مطلب