Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking/supervision, life-saving and teaching apparatus and instruments for the iron and steel industry, ferrous and non-ferrous metallurgical industry, namely, computer software for analyzing, optimizing and controlling the operation of blast furnaces; computer software for checking, controlling, monitoring, measuring, regulating, weighing, and metering blast furnace installations and m...