ISBN 10 : 7502083715 ISBN 13 : 9787502083717
Vendeur : liu xing, Nanjing, JS, Chine
EUR 61,39
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Ajouter au panierpaperback. Etat : New. Paperback. Pub Date: 2020-11-01 Language: Chinese Publisher: Emergency Management Press Research and Application of High-efficiency Roadway Retaining Technology for Concrete Filled Steel Tubular Pillars along Goafs based on the current status of coal-pillar-free mining technology and the use of concrete-filled steel tubular members in underground coal mines Based on the application research. a new type of high-efficiency technology for retaining roadways along goafs with concrete-filled steel.