Conversation so far:
what is the zip code for chihuahua mexico
The zip code for Chihuahua City, Chihuahua, Mexico is 31000.
what is the population of chihuahua city
As of 2017, the city of Chihuahua had a population of 878,062 inhabitants. while the metropolitan area had a population of 1,036,806 inhabitants.

Question: what are the city's industries
Self-contained rewrite: what are chihuahua city's industries