in a steel mill

action blast boom bright build burn bust cast droplets energy environment factory fill fire flame form foundry furnace glow glowing heat heavy hot industrial industry inside intense intensive iron labor ladle liquid make manufacture mass melt melten melting metal metallurgy mill mold molten organization oven plasma pour process produce production recession red roller smelter smelting smeltry smoke spark sparks spray steel steelmill steelworks stove tap tapping technology temperature white works