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there are two balls (drill level configuration chart) in the core drill

Summary: 河北东矿机械设备有限公司 主营机械设备,坑道钻机 莈莍莍莊莈莈莊莋莏莈莉 价格 ¥ 999 品牌 其它 关键词 取芯复合片钻头,...

hebei eastern machinery equipment co., ltd. main machinery equipment, tunnel drilling rigs 莈莍 莍 莈莈 莈莈 莈莈 莋莏 莋莏 价格 price ¥ 999 brand other keywords core composite film drill bit, well rock geological drill bit, small ball sheets. the core tool generally includes a censored and suspension of the core drill core core, and the function of the core drill bit 1 core drill bit is a ring-shaped broken wells, and forms the rock core 2. do not use the core drill bit to pull the eye 5 to lower the core drill to 10 meters from the bottom of the well, slowly open the pump, start the pump pressure must not exceed 8 mp, fully circulating the drilling fluid, simultaneously, in accordance with the specified quantity to the drilling fluid add people.

hollow drill head is also known as core drill bit, open cell, central drill, rail drill bit, magnetic drill bit, steel drill bit simple introduction hollow drill bit is also known as core drill bit, open machine, central drill, rail drill bit, magnetic drill bit, steel . the core tool generally includes components such as a core drill core core claw puller and suspension, 1 core drill bit 1 core drill bit is a ring-shaped broken wells, and forms the rock core 2. due to the low changing rate, the core drill has been eliminated as shown in figure 42, in order to increase the core gain ratio, in addition to using the hardcore in the lower drill string, the core drill bit is required to be stabilized, and the cutting element of the drill should be symmetrically distributed.