Underwood core power gold cable

Thank you . I see said the blind, 

@hasmarto
Thank you for your excellent investigative work.

History repeating itself here. 

I have purchased accuphase power cord from aliexpress thank you hasmarto for the link, we’ll worth the money, It has a clear bold sound from bass to tremble  more meat on instruments, smooth on vocals ,beautiful appearance , built like a tank , First I installed it on a fender amp sounded bad , but it worked. So I installed it in my preamp I was quite surprised , make that very surprised , even the words on some songs were more recognizable ,a very musical presentation go figure .

I checked out the Aliexpress site, they have a used set of Nordost Odin speaker cables for under $250 plus some other crazy deals  Are these genuine?  What is the story here?