When it comes to the FCC certification, I guess I don't understand the debate. Ask the dealer to give you the FCC ID from the certification label on the radio. Then go to the FCC Equipment Authorization database and look it up. In the database, you'll find the test report, user manual, and other documents submitted to the FCC when the certification was requested.
The Wouxon KG-UVD1P (and possibly some other model numbers) carries FCC ID WVTWOUXUN04. It has an FCC Equipment Authorization for Part 90 on 136 to 174 and 406.1 to 470 MHz.
The TYT TH-UVF1, TH-UVF2, TH-UVF3, TH-F5, and TH-F8 carry FCC ID X24-THUV. It has an FCC Equipment Authorization for Part 90 on 136 to 174 and 400 to 470 MHz.
FCC Equipment Authorization is not required for a transceiver in the US amateur radio service unless it has scanning capabilities which usually require a Part 15 certification.