Billingham ICI Casebourns cement plant on Havertonhill Road. Pre-war. 
Picture Stockton Archive
A Pictorial History of Stockton-on-Tees
Billingham ICI Casebourns cement plant on Havertonhill Road. Pre-war.
Very interesting. I can remember a horrible smell of acid when I was a kid.
I can remember when the roofs on the two streets of house were completely green in colour. This was as a direct result of the acid burning onto the roof tops. This was produced when making the cement.