metallurgists taking samples of liquid molten metal

alloy blast cast casting construction electric equipment eye factory fire flame foundry furnace glowing hardhat heat heavy helmet hot indoor industrial industry iron ironworks ladle liquid machine machinery man manufacture manufacturing melt melting metal metallic metallurgical metallurgist metallurgists metallurgy metalwork mill mold molten orange people pour process processing production protection protective safety sample samples slab smelter smelting smoke spark spoon steel steelworks taking temperature test work worker workshop