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- [2] CONCENTRATING LOW-GRADE TIN ORES BRITISH CHEMICAL ENGINEERING AND PROCESS TECHNOLOGY, 1971, : 20 - &
- [3] BENEFICIATION OF LOW-GRADE URANIUM ORES TRANSACTIONS OF THE AMERICAN NUCLEAR SOCIETY, 1975, 22 (NOV16): : 318 - 318
- [4] BENEFICIATION OF LOW-GRADE TIN ORES BY FLOTATION CANADIAN MINING AND METALLURGICAL BULLETIN, 1967, 60 (659): : 314 - &
- [7] Development of the low-grade manganese ores of Cuba TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1943, 153 : 97 - 109
- [8] BENEFICIATION OF LOW-GRADE TIN ORES BY FLOTATION CANADIAN MINING AND METALLURGICAL BULLETIN, 1966, 59 (647): : 276 - &
- [9] Determination of tungsten in low-grade tungsten ores INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1943, 15 : 652 - 654