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Vipande vya kuchimba visima vipo IADC127 inchi 7 7/8 (200mm)
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Biti za tricone zenye punguzo IADC127 9 5/8” (244.5mm)
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Kichwa kinachozunguka kwa ajili ya kifaa cha IADC127 9 7/8” (250.8mm)
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Vipande 3 vya roller vya koni IADC127 11 5/8” (295mm)
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Vipande vya kuchimba visima vya kina kirefu IADC127 12 1/4” (311mm)
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Vipande vya kuchimba visima vilivyobinafsishwa IADC127 14 3/4” (374mm)
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Vipande vya tricone vya jumla IADC127 inchi 17.5 (444.5mm)