industrial logo set

air art artistic building burn burner care chimney chimneys circle clip cogwheel combination concept cooperate cooperation corporate design development dirty eco ecology economical education effect emission energy engineering environment environmental factory fix fume fusion gasses gear global green icon illustration industrial industry job knowledge leaf logo machinery manufacturing mechanical people pollute pollution power precision problem process production recycle recycling rotate save sky smog smoke smolder solution solve spanner station steam strong support symbol towers vapor vector warming wheel work