Can someone break his arm? (Personal details)

The life of the arm is very short, and it is generally brand-new. As long as you break, there will be a gap. Which means his life is over. 、

But if there is a gap, it can still be used, but the intensity is not that great. For example, the 50 kg you use, after using it once, the strength is only about 40 kg.

So many people can press the old one with 50 kilograms for 20 times, but they can't press the new one with 40 kilograms.

However, it will take several years to crush the arm. Usually it will be scrapped if it is pressed about 654.38+ ten thousand times. Of course, if you maintain it well and don't let it rust, you can use it for a longer time.

But the longer you use it, the less you use it. So after a few years of use, it will be replaced with a new one.