Steel mill
From Tardis Wiki, the free Doctor Who reference
A steel mill was located in London. (TV: Thin Ice)
Roger ap Gwilliam claimed to have worked at a steel mill as a young man. (TV: 73 Yards [+]Loading...["73 Yards (TV story)"])
The Meep once crashed their ship in a steel mill in North London called the Millson Wagner Steelworks after being shot down by the Wrarth Warriors. (TV: The Star Beast)