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Hydropower Base
Hydrogeology
Engineering Survey
Geological Prospecting
Exploration hole drilling in Guilin Xiong Bei Ling tunnel
Details:SANYOU | 2021-01-20
桂林熊背岭公路隧道勘查孔钻探报道续:桂林三友王牌金刚钻,坚硬打滑地层特制产品,0-5B配方进口料绳索钻头,钻进下图坚硬钙质砂岩,班进尺15-20米,总进尺165米。
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