industrial workers in protective gear pour molten metal at steel foundry. team operates heavy machinery in high

bluecollar business casting craft craftsmen crew engineering equipment fabrication facility factory fire flames forge foundry gear glowing heat heavy highrisk hightemperature hot industrial industry intense iron labor laborers liquid machinery manual manufacture manufacturing men metal metallurgical metallurgy metalworking molten occupational operation operations plant production protection protective safety smelter smelting steel teamwork uniforms work workers workforce workplace workshop