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勘探技术研究所和张家口探矿机械厂共同研制的SGX13型钻塔（见图1），在厂内进行静负荷试验合格后，在北京地质局一○一地质队进行生产试验，共钻进两个斜孔。试验效果良好，受到用户好评。1981年12月中旬，由地质部装备工业局召开了鉴定会通过了鉴定。
The SGX13 rig developed jointly by the Exploration Technology Research Institute and the Zhangjiakou Prospecting Machinery Plant (see Figure 1) was tested in the Beijing Geological Bureau 101 Geological Team after undergoing a static load test in the factory. Oblique hole. The test results are good and highly praised by users. In mid-December 1981, the appraisal meeting was held by the Bureau of Equipment Industry of the Ministry of Geology.