Metal extrusion presses; forging machines; machine tools, namely, powered machines for cutting or shaping or finishing metals or other materials; shearing machines for metalworking; processing machines for metal; roller leveler machines having rollers for leveling or flattening sheets of metal; scrap metal chopping machines; metal coiling machine; stretch leveling cut-to-length lines in the nature of machines for processing metal; temper mill cut-to-length lines in the nature of machines for processing metal; roller leveling cut-to-length lines in the nature of machines for processing metal; multi-blanking lines in the nature of machines for processing metal; slitting lines in the nature of machines for processing metal; push-pull pickling lines in the nature of machines for processing metal; shape correction systems in the nature of machines for processing metal; hydraulic roller levelers; shearing machines for processing metal, namely, processing line shears including rotary, drum, hydraulic, flying and direct drive shears; side trimmers in the nature of machines for processing metal; scrap choppers; hot strip mill (HSM) shears for processing metal; temper mills; hydraulic gauge control (HGC) cylinders for precisely positioning work rolls in a rolling mill; downcoilers; plate levelers for correcting the flatness or shape of metal plates; roll changing systems for exchanging work rolls and back up rolls in a rolling mill; coil cars for transporting and lifting metal coils in a process line; extrusion equipment for extruding a metal billet into a structural shape; vacuum arc re-melt (VAR), electro-slag re-melt (ESR), plasma arc melting (PAM), and electron beam melting (EBM) vessels and hearths being parts of smelting machines