And yes this is a good example of a bad Chinese copy which are pretty much junk and you would waste your money buying them if you want any kind of accuracy
There patent has not expired I told you this before, you can extend an original patent almost indefinitely, just as long as you never let it expire
The GT2 Patent was not to replace the HTD patent where do you get this BS from
The GT series was a whole new development and the profile is completely different from any other Belts and pulleys, I have the real Drawings so know what you are saying is incorrect