Number 4 blast furnace and surrounding works. British Steel, Port Talbot, South Wales, UK. Photo circa. 1977.

Blast furnace – molten iron and slag flowing from blast furnace. British Steel Port Talbot steelworks, Wales. Photo circa 1977

Blast furnace – molten iron and slag flowing from blast furnace. British Steel Port Talbot steelworks, Wales. Photo circa 1977

Charging the BOS vessel with molten pig iron (hot metal) from the blast furnace. A stage in the basic oxygen steelmaking (BOS) process. British Steel works, Port Talbot, South Wales, UK. 1977.

BOS plant, British Steel, Port Talbot, Wales A basic oxygen furnace where oxygen is blown through molten pig iron heated to approximately 1,600℃ converting it into steel. Photo 1977

Interior view of steel rolling mill. British Steel, Port Talbot, South Wales, UK. Photo circa. 1977.

Port Talbot steelworks, blast furnace no. 4

Blast Furnace. Port Talbot steel works, South Wales