Strand of hot steel moves through a long automated series of horizontal and vertical rolls,which carefully shape it. Water sprays gradually cool the steel. The slabs are cut to length, and are transported for finishing and shaping at rolling mills.Strand of hot steel moves through a long automated series of horizontal and vertical rolls, which carefully shape it. Water sprays gradually cool the steel. The slabs are cut to length, and are transported for finishing and shaping at rolling mills