city buildings on the background of steel factory with smokestacks at night. metallurgical plant with chimney. steelworks

air background blue building buildings business chemical chemistry chimney city construction dusk ecology energy engineering environment equipment factory foundry furnace gas global heavy industrial industry iron landscape light manufacture manufacturing metal metallurgical metallurgy night petrochemical pipe pipes plant pollution power production sky smog smoke smokestack smokestacks stack station steam steel steelworks sunset technology the tube twilight with works