What should I do if the vacuum sucker can't suck things
What should I do if the vacuum sucker can't suck things
What should I do if the vacuum suction cup cannot suck things?

First of all, check whether the vacuum suction cup is intact, whether the vacuum suction cup is clean, whether the place where the vacuum suction cup is placed is clean and flat, and carefully inspect and clean.
Next, check whether the vacuum suction cup is old. For example, air leakage and insufficient vacuum suction. There are two solutions to this problem, as follows:
1. Coat the side of the vacuum suction cup with egg white or super glue, and then stick it where you want to put it. After it is completely dry, use it again. (A more practical and simple way)
2.Soak the vacuum suction cup in hot water or bake it on a fire (it is easy to burn out), and paste it while it is hot.

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