Vendeur : liu xing, Nanjing, JS, Chine
paperback. Etat : New. Pub Date: 2014-07-01 Pages: 102 Language: Chinese Publisher: Coal Industry Publishing House. the coal industry to identify specific types of vocational skills training in the practical operation of the recommended materials: coal technical inspection station to Workers technical grade standards People's Republic of China ( the coal industry) as the basis and reference checks coal preparation technology workers Occupational Skill Testing Center organized the compilation of the coal industry. I. N° de réf. du vendeur BZ037439
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