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12 1/4 ”311mm API isanzwe ya TCI urutare ...
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7 7/8 Inch Iadc 127 Amazi meza Yasya amenyo Dri ...
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SD12 Umuyaga mwinshi Umuyaga Dth Nyundo Dr Bit Dow ...
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6 ″ Kurura Bit / 3 Amababa Chevron Kurura Bit Fo ...
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BR3 Umuyaga wo hagati no hejuru Umuyaga DTH Nyundo
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32/34/36/38/40 7 Button taper rock drill buto ...