ESCR

machines used in the production and rolling of metal products, namely, tundishes, cooling nozzles and delivering valves and mixers, and descalers used to remove the scale and other impurities from the surface of slabs and plates before or after the rolling

electronics used in the production and rolling of metal products, namely, electric command panels used for the control of casting and rolling steps; adjustment and control switches and speed regulators for electric motors and generators used to drive casting and rolling apparatuses, namely, rolling cylinders, cooling nozzles and delivering valves and mixers, drawing rolls, heating furnaces and casting machines; relay panels for automation of casting machines and rolling stands, rolls and rings; electrical and electronic diagrams for driving and checking the casting and rolling steps; and electronic measuring instruments to measure and to indicate properties of a bar being rolled, both physical, namely, thickness, width, rolling speed, and chemical, namely, composition of the basic molten steel, surface appearance, color