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Ụlọ ọrụ API nke TCI tricone bit IDC617 5 5/8" (142.9mm)
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API rotary tricone bit IDC617 6 ”(152mm) maka igwu mmiri
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Tricone rock bit IDC617 8 1/2" (215.9mm) maka igwu mmiri.
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API emeputa nke tricone rock bit IDC617 9 7/8 inch (250mm)
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Ụlọ ọrụ API nke tricone roller bit IDC617 12 1/4 inch (311.1mm)
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Ụlọ ọrụ API nke mkpọpu nkume IDC617 17 1/2 inch (444.5mm) na ngwaahịa
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TCI tricone bit IDC617 6 1/2" (165mm) maka mkpọ ala