The iron- and steel-producing factories of Ukraine’s rust belt have made body armor, helmets and armored plates for vehicles — and steelworkers risked their lives rolling out heavy machinery at the beginning of the war to help physically block the Russian advance.The iron- and steel-producing factories of Ukraine’s rust belt have made body armor, helmets and armored plates for vehicles — and steelworkers risked their lives rolling out heavy machinery at the beginning of the war to help physically block the Russian advance.