Yes, I realize that... but if the receivers are identical (as in: not converted autos that were stripped from a once assembled FA gun, à la CZ-858), then the authorization to bring them in should stand the same. Administrative law states that administrative decisions have to have continuity... as in not change depending on the color of the sky on a given day.
As an example, if an administrative body gives permission for one thing to person or entity A, it cannot refuse permission for the same thing and under the same circumstances (and same legal framework) to person or entity B. In essence, every decision has a continuity and therefore administrative bodies have to be careful as not to create a precedent with a wrong decision. In a very real way, you could say that a decision rendered by a competent administrative authority has the force of law.
The TI Type 81 FRT # is a precedent. Even if the "other" future T81 rifles have a different nomenclature for import purposes, they are still under the same umbrella (provided that there aren't any technical differences between them and the TI precedent).
That, at least, is how it's "supposed" to work.
I agree, if the receivers are identical, then they are both semi auto, and they are both NR or R depending on the barrel that is attached to them. No argument. And yes, the FRT for the TI Polytech Type 81 is a precedent, but only so far in that the semi auto design is not prohibited as a variant or a named prohibited type, like the AK47.
However, the crux lies in whether or not the next importers version is actually identical to the receiver that TI has brought in. If it is, no issue. However the lab will want to check it out to be sure. It isn't about permission, it is about whether or not the receivers are the same in function.
TI imported the Type 88 years ago. It received a NR status. Another importer has recently tried to import a Type 88 style, in their own designation/make/model and received a prohibited status because the lab found it to be full auto. This is the very example of what we are talking about.
Additionally, the Bushmaster M17s is non-restricted. K&M Arms is making their own version of the M17s, with a lower that is completely interchangeable with the lower of a Bushmaster M17s, except in one is metal (K&M), and one is plastic (Bushmaster) and the lab has the K&M version tied up in inspections now for almost 2 years.
The test might not be as long, or as difficult to pass, but the lab will want to be satisfied that the next importers version is also semi auto. They won't just assume it is.
If someone else wanted to import the Polytech Type81SA from Emei, the lab wouldn't care or even have issue. It would be one FRT, just with two importers now instead of one. But one from elsewhere, it will get scrutiny.
Canada Ammo has posted they have a sample at the lab. If it were as you say, that one wouldn't be stuck in classification exams right now, like it is.