Traditional Culture Encyclopedia - Photography major - How to distinguish between sticky lead block and broken lead block for wheel hub? Is there a logo on the hub?

How to distinguish between sticky lead block and broken lead block for wheel hub? Is there a logo on the hub?

If there is no logo on the hub, look directly at the shape of the hub. Generally, the edge (the outer ring inside and outside the hub) has a protruding circle, which can be knocked or glued. All wheels can be glued together, which is more beautiful than knocking. But because the adhesion test is the firmness of glue, it is cheap and easy to drop (the wheel loses its balance, it is useless), and it is tight and does not knock. 3M glue has a good balance, but it doesn't mean that all the tire shops you go to have genuine 3M glue.