Metallurgy steel mill foundry works industry casting founder smelting furnace steelmaking plant oxygen blown vessel steelmaker pouring platform gas oven heating temper furnace tiled stove work production steelworks hot blast plant heat spark iron line molten metallic fire metal pollute technical heavy smelting power glowing temperature ironworks bright furnace casting technology building equipment melting combustion flame workshop industrial manufacturing interior factory background indoor danger industry environment manufacture collage photo brown orange yellow
您在 中发现了 0“metallurgy steel mill foundry works industry casting founder smelting furnace steelmaking plant oxygen blown vessel steelmaker pouring platform gas oven heating temper furnace tiled stove work production steelworks hot blast plant heat spark iron line molten metallic fire metal pollute technical heavy smelting power glowing temperature ironworks bright furnace casting technology building equipment melting combustion flame workshop industrial manufacturing interior factory background indoor danger industry environment manufacture collage photo brown orange yellow” 图片