I wouldn't risk it, they will be at best inconsistent and at worst downright dangerous. Don't want to punch myself in the mouth. There is a very remote possibility that they may be safe and consistent and even surpass American made ones in quality and workmanship, but then they wouldn't be cheap. For me the $250+ price of a good reliable release (Tru Ball Incredible) is worth it. I have been shooting one for going on three years now, so it is down to 25 cents a day! Also used they can be found half-priced.
Best,