Apparently Carvin strings are made by LaBella. That doesn't seem to be the whole story, however. I went up there the other day (I live in San Diego) to get a couple of things, and while I was there, I checked out the strings. The flatwounds are definitely not the same as LaBella Deep-Talkin' flats. For instance, the B string of the Carvins is not tapered, and the LaBella is. The silk is a different color, also. The stainless roundwounds look very much like LaBellas, though, with the silk being wrapped in the same pattern and length. I bought a set of the stainless six-string bass strings, but I haven't tried them yet. It will be interesting to see how they compare with Hard Rockin' Steels, my current favorite. I also picked up some five-string tapewounds, which are LaBellas in LaBella packaging. As far as I can tell, these are the same tapewounds you would buy elsewhere, just a lot cheaper. Just thought you might like to know.