37 maintenance of buildings, namely, factories that use smart, digital manufacturing facilities; repair of buildings, namely, factories that use smart, digital manufacturing facilities; repair or maintenance of buildings, namely, factories that use smart, digital manufacturing facilities; construction of buildings, namely, factories that use smart, digital manufacturing facilities; providing information relating to the repair or maintenance of buildings, namely, factories that use smart, digital manufacturing facilities; providing information relating to maintenance of buildings, namely, factories that use smart, digital manufacturing facilities