Industrial ovens, namely, hardening, tempering, annealing, austenitizing and normalizing ovens for industrial use and furnaces, none of the foregoing for food and beverages and none connected to, accessible by, or able to be operated through the internet; cooling plants and apparatus, namely, cooling plants and apparatus for roller hearth furnaces for industrial use not connected to, accessible by, or able to be operated through the internet; furnaces, apparatus and installations, namely, rol...