Ah, right, in that sense.
(Could you send the Journal "Docked" event for that station, please? That's probably needed to fully answer the question by determining the exact proportions of both market types)
In a concrete rather than RP sense, it's not the industrial settlement itself that's doing the consuming in this case - it's the industrial component of the Coriolis' own economy, as set by the settlement's influence, which is doing it.
This is going to get into the details of station specialisation
Steel seems to have production generally higher than consumption for equivalent-sized markets - but there is a wider range on the steel consumption with a very high peak, so you could have that be consumed.
(Copper is surprising that you're getting exports for - though there is scope to get lucky and have a low-consumption market for it on the industrial side)
Here's the 'Docked' event:
{ "timestamp":"2025-03-25T15:41:46Z", "event":"Docked", "StationName":"Boll City", "StationType":"Coriolis", "Taxi":false, "Multicrew":false, "StarSystem":"Col 285 Sector UA-D c13-1", "SystemAddress":358663394042, "MarketID":4208428035, "StationFaction":{ "Name":"The Lab ADM" }, "StationGovernment":"$government_Anarchy;", "StationGovernment_Localised":"Anarchy", "StationServices":[ "dock", "autodock", "blackmarket", "commodities", "contacts", "missions", "outfitting", "crewlounge", "rearm", "refuel", "repair", "shipyard", "engineer", "missionsgenerated", "facilitator", "flightcontroller", "stationoperations", "powerplay", "stationMenu", "shop", "livery", "socialspace", "registeringcolonisation" ], "StationEconomy":"$economy_Refinery;", "StationEconomy_Localised":"Refinery", "StationEconomies":[ { "Name":"$economy_Refinery;", "Name_Localised":"Refinery", "Proportion":0.900000 }, { "Name":"$economy_Industrial;", "Name_Localised":"Industrial", "Proportion":0.450000 } ], "DistFromStarLS":268.883185, "LandingPads":{ "Small":17, "Medium":18, "Large":9 } }