Before purchasing I read the reviews and many of them were negative, some of the reviews mentioned that these are not real ball valves, there are no balls in them. But since the price is cheap, I decided to give it a try. They turned out to be very difficult to turn, I can't even turn them with a wrench, maybe you're right, these aren't real ball valves. In any case, it's not good to turn like that, even if they are real valves, sooner or later they will break. So don't buy.
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