Now this is conjecture, but it would appear Huawei isn't renaming their products even though they're improving. For example the Huawei Ascend 920 started with about 256 TFLOPs but now is being sold with 300 TFLOPs. Similarly, Huawei is still selling phones with Kirin 710 chips, but they too have been getting faster and faster.Isn't the Ascend 910 a GPU announced before Huawei got sanctioned in 2019?
Not only is it very old, but Huawei probably lacks the ability to manufacture it now. If they are using it today, then it is probably legacy copies that were made for them before the ban. Which means they have limited quantities and are unable to improve the hardware. If anything, the fact that Ascend 910 is still China's best GPU proves that the sanctions succeeded in stopping Huawei in its tracks.
So what I would glean from all of this is that Huawei is just lying about their products. How and where is Huawei getting all these 7nm chips is anyone's guess at this point. But it makes sense that Huawei is straight up hiding what they're making. No need to excite USA, better to just keep producing and improving.
It's like China's super computers. China was first to exascale, but they're not reporting it anywhere. Why let USA know where you actually are?