00452cam a22001694a 4500003001000000005001700010008004100027040002500068041000800093044000700101080001000108100001400118245004200132260006800174650002100242655001900263AR-SsjUIB20250710145455.0250429s1954 fr 000 0 fre d aAR-SsjUIBcAR-SsjUIB0 afre afr a669.11 aCoche, L.10aL'enrichissement des minerais da Fer. aMetz :bCentre d'estudes superieures de la sidélurgie,c1954. 7aSiderurgia2lemb 7aLibro2unescot