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API awọn cones mẹta bit IDC537 11 5/8 ″(295mm) fun kanga lile
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Yiyi konu oni-mẹta IDC537 12 1/4 ″(311mm)
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Irin edidi Jina Eastern apata lilu bit IAC537 13 5/8"(346mm)
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API tricone drill bit IDC537 14 3/4″ (374mm) fun apata lile
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Tricone rola bit liluho IAC537 15.5″(393.7mm) fun kanga ti o jinlẹ
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TCI liluho bit IDC537 16 ″(406.4mm)
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Tungsten Carbide Fi tricone bit IDC537 17.5 ″ (444.5mm) sii
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API & ISO tricone rola bit IAC537 26″(660.4mm)