Vendeur : liu xing, Nanjing, JS, Chine
paperback. Etat : New. Paperback. Pub Date: 2006 Pages: 182 Language: Chinese in Publisher: Coal Industry Press mine dust-workers (beginner. intermediate. advanced) were introduced: beginner. intermediate. advanced mine workers dustproof vocational skills assessment identification requirement for knowledge and skill requirements. Include mine dust hazards and governance. mine dust control system. flameproof facilities. rules of order. the roadway dust cleared. the dust dust source analysis and dustproof piping syst. N° de réf. du vendeur CC070145
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