Vendeur : liu xing, Nanjing, JS, Chine
paperback. Etat : New. Language:Chinese.Paperback. Pub Date: 2018-11-01 Publisher: Metallurgical Industry Press book combines outstanding problems of non-pillar sublevel caving mine production exist. carried out without sill ore body under complicated conditions for the application of sublevel caving research and found that mining and recovery of ore possesses its own peculiarities. needs cutting. blasting and ore and other aspects of the use of special technical means to solve the ore . N° de réf. du vendeur NN046026
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