000 005790000a22001810004500
245 _aAutomatic control and energy savings in Lead and Zinc flotation process
260 _bMitsui Mining & Smelting Co.Ltd.]
300 _a15 p.
440 _aMetal mining technology in Japan ; 04
500 _aa photocopy
080 _a622.3
_bA9
650 _aLEAD ORE TREATMENT-FLOTATION-CONTROL
650 _aZINC ORE TREATMENT-FLOTATION-CONTROL
650 _aFLOTATION-LEAD ORE TREATMENT-CONTROL
650 _aFLOTATION-ZINC ORE TREATMENT-CONTROL
041 _aEN
942 _cBK
999 _c62016
_d62016