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Uduce two gucukura amazi y'urutare rwa API IADC537 santimetero 269 (269mm)
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API ifite uduce dutatu twa cones IADC537 11 5/8″ (295mm) kugira ngo ikoreshwe neza
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IADC537 ifite agace ka tri-cone gazenguruka 12 1/4″ (311mm)
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Igice cyo gucukura amabuye cyo mu Burasirazuba bwa Far Eastern IADC537 13 5/8″(346mm)
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Gucukura icyuma gikoresha icyuma cya Tricone IADC537 15.5″ (393.7mm) kugira ngo ubone amazi menshi
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Igice cyo gucukura cya TCI IADC537 16″ (406.4mm)
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Tungsten Carbide Insert tricone bit IADC537 17.5″ (444.5mm)
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API na ISO tricone roller bit IADC537 26″ (660.4mm)