My Weiss branded lathe was ordered and shipped from Quebec. And there are or were Weiss labled machines in a few parts of Europe. For at least mine and I believe the Warco 280V, PM 1127 and LB models they all seem to be built in Nanjing China. That said, and while they might be from the same factory, there's various non stock or usual features some of the tool dealers just don't bother to list. MT 3 tail stocks as just one example where most list there's with MT 2. Now there's also various spindle nose designs from what seem to be quite rare threaded, then the studs and nuts and up to the proper D1-3. Just because a dealer lists the lathe with only certain features doesn't mean others aren't available as long as your willing to special order and wait for it to be built and shipped with the next order because that's what I did. I dunno, maybe not all dealers would be willing to do so. Mine was.
These machine tool factory's are now much like the North American automotive factory's from the 1950's - 80's. They'll have an available option list and with business the way it is in China, will build some of the quality, grinding etc up or down to meet your out the door price point. Grizzly has mentioned quite a few times in the past having there own limited staff at some of the machine tool manufacturers as there in place QC for final acceptance the tool would meet there minimum standards. Looking just like is not the same thing as being exactly the same. Some models of the PM lathes have feed rod clutches instead of the rudimentary shear pin all the rest seem to have. Superficially then yes they all look to be the same until you start to look a bit closer. I'd also suggest it's fairly safe to assume the lower volume dealers with lower price points might get some of the lesser or close to out of spec parts that the high volume dealers don't, or in Grizzly's case there own QC reps ensure they get the better parts and assembled machines. It's simple business economics at that point. That also might answer why some lower priced machines have more part or electrical issues mentioned on these forums than other more established dealers do for what looks to be the very same machine. Since we don't know for sure were all mostly guessing. But I'd rather make mine with more logic based guesses.