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flo696869's
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flo696869's
flo696869's
04_Perforaciòn rotativa con triconos
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26_Voladuras subacuaticas
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07_Metodos de Perforacion y Sist Montajes Esp
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04_Perforaciòn rotativa con triconos
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26_Voladuras subacuaticas
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01_Metodos de perforacion
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14_Sistemas de Iniciacion y Cebado
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16_Mecanismos de Rotura de La Roca
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