76170219
Nov 22, 2000
Jan 6, 2004
CHEMICAL PREPARATIONS FOR THE TREATMENT AND PURIFICATION OF WATER AND SOIL; FLOCCULANTS, NAMELY CHEMICAL AGENTS THAT INDUCE THE LOOSE AGGREGATION OF SUSPENDED PARTICLES, FOR THE TREATMENT OF ACID MINE DRAINAGES; CHEMICALLY TREATED RESIDUES FROM THE ALUMINA PRODUCTION PROCESS TO BE USED IN INDUSTRY, MINING, AGRICULTURE, HORTICULTURE AND FORESTRY
ChemicalsCONSULTATION SERVICES IN THE FIELD OF CHEMICAL REMEDIATION AND REHABILITATION OF MINING SITES
Computer and Scientific