PROCESS FOR PRODUCING ALUM EARTH FROM BAUXITE CONTAINING GIBBSITE
FEHER,IVAN,HU, BANVOELGYI,GYOERGY,HU, SIKLOSI,PETER,HU, FERENCZI,TIBOR,HU, CSORDAS T.,ANNA,HU, SAJO,ISTVAN,HU, ZOELDI,JOZSEF,HU, TASSY,MIKLOSNE,HU
Year of Publication 28.10.1990
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Year of Publication 28.10.1990
Patent