trenchless hdd drill bits ساخت آنلاین

8 1/2" Tricone bit roller cutters for core barrel,roller cone cutter,tricone cone bit Product Description Size 140mm 8 1/2 inch roller core bits part Machine Type piling tool/ hole opener roller bit Certificati... 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 Power Factory Single Roller Cone Drill Bit Cutter 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 Drill Bit Cutter 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

9 1/2inch metal bearing single roller cone drill bit cutter 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

single roller cone drill bit cutter metal bearing 9.5inch 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

8.5inch single cone rock roller drill bit for rotary drilling 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

Solidkey 8.5inch Roller Cone Cutter Rock Drill 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

400mm Hdd Hole Opener Rock Reamer Drill Bit The cone has a reasonable angle of inclination, and the back of the palm is inlaid with a reinforced alloy to prevent premature wear of the palm of the palm. It has ... 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