Sentence:  But through the oligopoly, charcoal fuel proliferated throughout London's trades and <WSD>industries</WSD>.  By the 1200s, brewers and bakers, tilemakers, glassblowers, pottery producers, and a range of other craftsmen all became hour-to-hour consumers of charcoal. 
Meaning of the word marked with <WSD> tags:  Businesses that produce goods as opposed to services.