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Cov ntsis tho qhov hauv Tshuag IADC127 7 7/8 nti (200mm)
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Cov khoom siv tricone luv nqi IADC127 9 5/8 "(244.5mm)
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Lub taub hau tig rau rig IADC127 9 7/8 ”(250.8mm)
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3 lub khob hliav qab rau cov menyuam IADC127 11 5/8” (295mm)
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Cov ntsis khawb qhov dej tob IADC127 12 1/4” (311mm)
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Cov khoom siv tho qhov dej tshwj xeeb IADC127 14 3/4 ”(374mm)
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Cov khoom lag luam wholesale tricone IADC127 17.5 nti (444.5mm)