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7 1/2 inch Api Standard High Quality Steel Body Pdc Drill Bit maka mmanụ ma ọ bụ egwu mmiri nke ọma
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4 1/2 inch Water Well Roller Cone Bit 114mm Steel Tooth Tricone Bit
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9 7/8 inch Promotional Premium Api StandardTricone Drill Bit Maka igwu mmiri nke ọma
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7 7/8 inch nwere 6 Blades Water Well Steel ahụ Pdc Drill Bit maka igwu mmiri nke ọma
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12 1/4 inch nwere 5 Blades Steel Body Pdc Bit Maka Mmiri na Ngwunye nke ọma Mmanụ
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26 inch Iadc 537 Drill Bit Manufacturer Rubber Akara akara Tci Tricone Bit
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7 7/8 Inches Iadc 537 Tci Tricone Rock Bit Maka nhazi siri ike Ọkara
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15 1/2 inch Iadc 537 rọba akara nke na-agba Tci Tricone Rock Bit maka nhazi siri ike Ọkara
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8 1/2 Tricone Drill Bit Iadc 517 Drill Tool High Quality dị ọnụ ala
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13 5/8 inch Iadc 517 Water Well Tci Tricone Drilling Bit Maka ike mkpakọ dị ala
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6 ″ Dọrọ Bit / 3 Wings Chevron Drag Bit Maka Ọdịmma Mmiri
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4 1/2 ″ Api 4 Wings Chevron Drag Bit Maka Ngwunye Geothermy
