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中国有色金属工业总公司长沙公司1987年12月8～9日在湖南川口钨矿主持召开了SQZ-1型潜孔钻车鉴定会。全国20多个单位的70名代表,认真审查了钻车、设计图纸及试验资料,观看了钻车作业实况,作出了符实的评价。 SQZ-1型潜孔钻车由中南工业大学和湖南有色金属研究所共同研究,湖南岳阳机床厂试制,1986年10月正式在湖南川口钨矿三角潭工区进行工业试验,共钻4条天井的全部深孔,
Changsha, China Nonferrous Metals Industry Corporation 1987 December 8 ~ 9 in Sichuan Kawaguchi tungsten hosted a SQZ-1 DTH drilling car appraisal meeting. 70 representatives of more than 20 units throughout the country carefully reviewed the rigs, design drawings and test materials, watched the actual situation of rig operations and made a true assessment. SQZ-1 DTH drilling rig by the Central South University of Technology and Hunan Nonferrous Metals Institute of joint research, trial production of Hunan Yueyang Machine Tool Plant, in October 1986 formally in Hunan Kawaguchi tungsten Triangle Lake area for industrial testing, a total of four wells drilling All deep holes,