Most of our car owners nowadays are very diligent in maintaining the oil. The tires seem to have to be replaced if they have to use patterns.
Some friends simply do not know how to change.
I recently asked about Michelin's brothers. He gave us a good idea and it was a terrible way.
For a one-dollar yuan coin, isn't there a flower? You put this side of the coin with flowers on you, then insert it into the seam of the tire. You see, if the whole flower is exposed, basically you will change the tires. If, for example, the leaves of this coin, the flower's stamen, and one more point are embedded in this groove, it can basically continue to be used. It is a very simple and practical way.
Of course, if you want to be absolutely sure, you might as well go to the tire shop and use a professional gauge to measure your tire life and durability.
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