Chinese stuff can be very hit or miss and more often than not, isn't what it claims to be. So "buyer beware" obviously.
And often times youll have to wait 1-2 months for "free" shipping or pay $30+ for 1 week delivery direct from china.
OCC or OFC copper is more than likely to be cheap recycled copper, plus the sleeving is likely PVC or some other plastic rather than Teflon.
The stuff I got was really stiff, and feeding a 1/4" rope through the middle was a nightmare.
I have enough ends to make another pair, but i need to find a better way to feed the rope through it... The cables are quite stiff and dont like having something fed through them or being pushed together to open up the center.
The actual Kimber Kable seems to have a different, looser style of braiding that should be much easier to work with.
Though I think there are also other versions Kimber makes from polyethylene instead of Teflon.
Still need to do some A/B testing soon.