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ISBN 10: 7502074384ISBN 13: 9787502074388
Da: liu xing, Nanjing JiangSu, JS, Cina
Libro
paperback. Condizione: New. Paperback. Pub Date: 2019-08-01 Pages: 172 Language: Chinese Publisher: Emergency Management Press mine hoist operation work highlights the worker Occupational Specialty operation and prevention of occupational hazards. mine hoist and mine accident prevention. coal hoisting system. mine hoists. lifting and braking machine security devices. mention .