molten steel cascades from large ladles into enormous round moulds, illuminating the hot-rolling shop with sparks and intense heat

steel casting molten metal iron ladles hot rolling shop industrial process round moulds sparks metalworking operations foundry production ironworks manufacturing heavy machinery fabrication industry workers furnace pouring metallurgical heat craftsmanship artisan fire line worker safety welding equipment alloy facility resistance engineering tools large precision raw materials setting operational cascades enormous illuminating hotrolling intense