Treatment of materials of metal, in particular molten baths thereof; treatment of liquid metals by inoculation; treatment of metal, namely, metallurgical processing of hot metal, metallurgical smelting, metal melting, metal tempering, treatment and transformation of bauxite, alumina, aluminium and silicon oxide, abrading and polishing of bauxite, alumina, aluminium and silicon oxide, for the packaging, automobile, aeronautical, marine, building, mechanical, boilermaking, electronics, domestic...