On metalworking in factories, Workers pour molten into the molds. Men wearing goggles work the furnaces, shoveling bricks of iron into a furnace. Men, mostly black, put in furnace for melting. Workers pulls furnace of molten iron across room an a wire system. They pour molten metal into smaller pouring containers. VO that men are protected by masks. Casts are put onto a vibrating tray. A conveyor belt filled with malleable iron castings pulls then through an annealing process. Sturdy truck exits garage; VO that metal production is as important to peace economies as in war economies.