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Kamfanin API na Roller cone bit IDC637 3 7/8" (98mm) a hannun jari
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Mai ba da maballin rago IDC637 7 7/8 ”(200mm)
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API tricone rock bits IDC637 9 5/8 "(244.5mm) a hannun jari
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TCI tricone bit IDC617 6 1/2 ″ (165mm) don na'urar hakowa
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API ɗin mai ba da kayan hakowa mai zurfi na dutsen rijiyar IDC537 9 5/8 ″(244.5mm)
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API TCI button bit IAC537 9 7/8"(250mm) don hako rijiyar dutse
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Maɓallin Rotary Bit IDC537 3 7/8 ″ (98mm)
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Tricone Bits IDC537 4 5/8 ″ (118mm)
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Tricone drills IDC537 4 3/4 ″ (120.6mm)
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API tricone rock bit IDC537 5 1/4 ″ (133mm)
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API rock drill bit IDC537 5 1/2 "(139.7 mm) don rijiyar mai wuya
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API ɗin rawar soja IDC537 5 5/8 ″ (142.9mm)