Prazi bought out the old Hobbymat name I take it. Those machines were/are also branded Unitech. They're metal cutting lathes. Some woodworking machinery also. I can't understand why a google search reveals nothing for you. Try using an umlaut 😉
Allegedly there were Taiwanese copies of the Sd-300 at least. I want to say Unitech were made in Germany but don't know. They were also called Prazimat and another variation that escapes me.
I have 2 incomplete Prazis (pronounced PRA-ZEE?). Sd-300 and SD-400, don't ask please. Whether it's a long or short a, I'll continue to say Prazi like CA(T) ZEE, w/o the T.
I also have a Harbor Fright lathe that may be modeled after the SD-500? Or whatever it was called when it carried the Prazimat badge.
The American distributor for Prazi currently is the biggest ace-in-the-hole you've met. So's his wife. I won't deal with them. It's unfortunate because they're tools are of simple design (astounding for a German manufacturer) and very well made. Very accurate. They're a bit pricey for most people's pockets. You'd look at the SD-300 and immediately compare it to the old Unimats. But nuh uh. It's a light duty machine but is far better quality.