Never heard of them, had a quick google and most of the ones I came across were ICR batteries so not so suitable for
vaping.
Probed deeper and found some IMR chemistry 18650s and 26650s. Specs are identical to other IMR batteries out there so they would likely be re-wraps in my opinion.
It costs a lot of money to develop new cells so these kinds of random chinese brands are almost always re-wraps, which means if you can work out what it likely is then the battery you're getting might still be pretty good, but also you run the risk of them being complete garbage and the specs just made up. So why not just buy the original?
Just my opinion obviously....