I don't mean to interfere in your medical diagnosis, but you have a fairly large air bone gap in your left ear, larger as frequencies get low.
This is often an indication of a middle ear condition.
Don't get me wrong: you also have sensorineural hearing loss (like me, you have both), but the conductive part of your loss could be caused by something like otosclerosis. I'm unsure your conductive losses are to be attributed to your loud noise exposure.
Hasn't any ENT doc mentioned this to you? Have you done any fork tests? (Weber, Rinne) any CT Scan to check your middle ear?