Report - TÉCNICAS DE PERFURAÇÃO COM … · 2.3.1 Fase de 36” – Broca Tricônica ... 2.3.2 Fases de 26” e 17 ½” – Broca PDC ..... 8 2.3.3 Fases 12 ¼” e 8 ½” – Broca Impregnada

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