The chances of them being secure are less than zero.

I’d have a really good liability policy if you’re planning on selling them and then be careful of your representations

companies that do the successfully go visit the factory themselves, and have experts evaluate product, safety, and security.

Even so, you have to constantly monitor for changes. Multiple factories produce the same product and there’s little respect for intellectual property the Chinese companies rip each other off left and right.

So the quality from a given exporter could radically change overnight.