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新型竖井钻机是专门用于钻大口径竖井的一种新型全液压钻机,钻井直径最大可达25英寸。这种钻机可用于冲积矿床的勘探(如砂金矿和冲积金刚石矿),土木工程地质勘探和打沉井。该钻机有三
The new shaft rig is a new full hydraulic rig specifically designed for drilling large diameter shafts up to 25 inches in diameter. This rig can be used for the exploration of alluvial deposits (such as sand gold and alluvial diamond mine), civil engineering geological exploration and sunk well. The rig has three