Great Drill Bits and China University of Petroleum Explore New Pathways for Industry-University-Research Collaboration on High-Pressure Water Jet Technology - 翻译中...

Raise Boring Cutters OverviewThe raise boring cutters is mainly used for the construction of vertical shafts, ventilation shafts inclined shafts, pressure regulating shafts and escape shafts , and it...

Tamanho Popular: 1305, 1308.1613, 1616.1913

GREAT DRILL tamanho personalizado de reamers Rock de 10 ''a 72''.

Esta é uma broca PDC de corpo de matriz de 7 lâminas, com linha posterior de cortadores Stinger, usada para formação muito abrasiva.