Stupid question on Power Cords?

The only way to know is to try upgraded cords and decide if the difference you hear is worth the money. In my experience aftermarket cords can make a significant difference.
One way to experiment - as I did - is to contact The Cable Company and rent several for their 10-day trial. You can put the rental fee (5% of retail) toward a purchase of new or used cords. The other way is to buy used and resell on AudioGon as a way to sample differences

After trying several - SIlver Audio, Kimber, Harmonic Tech, DiMarzio - I found the JPS Labs cords to be head and shoulders above the others. But the only way to know is to try some yourself.

Try a VH Audio Flavor 4. This is a great value.

If you are worried about a Chinese made cord, what does that say about the rest of the player?

It doesn't say anything about the rest of the player.

It says something about the owner's concerns. After reading the OP carefully, it seems to me he has no issue with the stock Shanling PC. He just wonders if it's worth upgrading.

I have owned Shanling players and I own two Shanling amps. The stock cords are quite good IMHO. I tried premium power cords (Ensemble and Wireworld) on the players with good results. I have not tried premium cords on the amps, because there is more to gain by upgrading source and preamp cords.

I would suggest trying an upmarket cord on the T200. The Acoustic Zen El Nino has worked well on sources for me recently, at reasonable cost.

unless you are unhappy with the sound, don't change a thing.