Yes. It's only an industrial if two piercings are joined by a straight bar. If they're joined by a ring it's called an orbital. If they're just two holes with seperate jewellery they're just helix piercings.
I believe the jewelry piece is a bit thicker, so the whole for an industrial is bigger you know? Like almost like a gauge, depending on how big you get it.
I think the jewlery is the primary difference.