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Jointly developed by the China Railway Construction Heavy Industry Co., Ltd. (CRCHI) and China 15th Metallurgical Construction Group Co., Ltd., the tunnel boring machine rolled off the production line in Changsha, central China's Hunan Province on Dec. 18(Wednesday). It is about 130 meters long and approximately 800 tonnes in weight, with an excavation diameter of 5.63 meters. It will be exported to Zambia to construct the mining tunnel at the southeast part of the Chambishi Mine, marking the first export of Chinese mining tunnel boring machines to Africa.

12月18日，一台由中国铁建重工集团、中国十五冶金建设集团联合打造的矿用掘进机在湖南长沙下线。该台掘进机长约130米，重约800吨，开挖直径达5.63米。该设备将出口至赞比亚并参与当地谦比希东南矿体巷道工程建设，这是中国矿用掘进机首次出口非洲。