Gas compressors; continuous casting machines; continuous annealing machines; galvanizing machine for galvanization of steel plate and steel wire; sintering machines; cooling bed, namely, a working platform to effectively cool the hot rolled steel products; cold-rolled equipment, namely, cold rolling mill; heat-rolled equipment, namely, hot rolling mill; geological prospecting machines, namely, mine borers, mine hoists machines, hydraulic ground supports, namely, a machine which supports the c...