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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 ... और अधिक पढ़ें

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 ... और अधिक पढ़ें

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 ... और अधिक पढ़ें

Factory Roller Cone For Piling Machine 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 ... और अधिक पढ़ें

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 ... और अधिक पढ़ें

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 ... और अधिक पढ़ें

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 ... और अधिक पढ़ें

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 ... और अधिक पढ़ें

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 ... और अधिक पढ़ें

CHINA strong brand Factory wholesale 311MM iadc 537 tricone rock drill bit for oil/water well drilling JSBIT tricone bits factory offers all kinds of tricone drill bits. Tricone bits are available in new and ... और अधिक पढ़ें