Search the forum, there is information on Zebrakenko to be had. I owned (for a short time) a Zebrakenko Storm. The name on some Zebras is on the drive-side chainstay. Look there. I think the Storm was bottom rung.
It was heavy by most standards, probably 30 lbs. or so. Had some nice detailing and components were decent. Nice Sugino cranks, for example.
I'll search to see If I still have photos. Bought it and sold it a couple weeks later. I rode it several times and it just didn't trip my trigger, so to speak.