molten iron pours into large moulds as sparks litter the air, showcasing the dynamic process of steel casting in a hot-rolling

manufacturing craftsmanship temperature engineering showcasing hotrolling industrial production metallurgy ironworks machinery metalwork operation materials workshop smelting heatwave industry material dynamic process casting rolling pouring foundry vibrant furnace factory glowing molten moulds sparks litter ladles worker safety pours large steel metal round heavy alloy ladle scale iron shop heat line high gear cast air hot raw