Vendeur : liu xing, Nanjing, JS, Chine
paperback. 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. N° de réf. du vendeur NS056024
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