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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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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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15 3/4 inch 5 Wings Steel ahụ Pdc Bit na ọnụ ahịa ụlọ ọrụ
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15 inch nwere 5 Blades Steel ahụ Pdc Diamond Drill Bit
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9 1/2 inch 244.5mm Pdc Bit nke anụ nku 5
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9 inch Pdc Bit Factory Hot ire 5 Blades Hard Rock Drill Bit maka igwu mmiri nke ọma mmanụ
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8 1/2 Inch Steel Body Pdc Drilling Bit na 5 Blades Maka Mmanụ na Ịgba Ọdọ Mmiri.
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6 1/2 Api Standard Tungsten Carbide Drill Bit Maka Mmanu Na-adọkpụ Matrix ahụ Pdc Drill Bits
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6 inch Pdc Drilling Bit nwere 4 agụba maka ịkụ mmiri mmiri
