What metals were produced by the the steelworks company hit in the Barrow Blitz alongside VSEL? 
Barrow Blitz:  VSEL shipyard was the main target for bombing alongside Barrow's steelworks which were formerly the largest in the world. Barrow Hematite Steel Company: The Barrow Hematite Steel Company Limited was a major iron and steel producer based in Barrow-in-Furness, Lancashire (now Cumbria), England, between 1859 and 1963.
iron and steel