GREAT PDC bits run in the oilfield2019/10/30Oil and gas exploration is a rigorous and complex work. The discovery of new energy areas not only means the supplement and enrichment of industrial raw materials, but also means the progress of indus...TY_VIEWS
Overview 120 ° U-shaped Roller bitGREAT has customized manufacture several types of roller bit . The traditional roller bit was cut by tricone bit . So it is including No.1 ,No.2, No.3 Cone cutters ....