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ISBN 10: 7564637838ISBN 13: 9787564637835
Da: liu xing, Nanjing JiangSu, JS, Cina
Libro
paperback. Condizione: New. Paperback. Pub Date: 2017-11-01 Pages: 141 Language: Chinese Publisher: China university of mining press national security production mine equipment inspection center in Shanghai. Shanghai MeiKe inspection technology MeiKe industry group co. LTD. Shanghai co. LTD. Detection technology research center of the mine explosion-proof electrical equipment maintenance technology of coal mine safety technology.