Wow, Suntech was just a Taiwanese me-too brand, but this bike looks amazing , of course also due to the nice color.
It's the model Sunbridge from 1995, but the purple seem to look in real much better.
It's CroMo and typically Suntech had been offered for cheap money, so I would assume it's also quite heavy and sure, it's obviously a bit like a copy of the Corratec Bow design.
A while ago i was tempted to by a T-Type which was offered in my Neighborhood very cheap.
I haven't spent the 25€ because of the limited quality.
The brand was around a few years early to mid Nineties.