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When the toothpaste is about to run out, it is very difficult to squeeze out. If you throw it away, it's wasteful.With the annular opening, when running out of toothpaste as long as a pull ring, you can easily put the rest of the toothpaste.
This is a resource saving design, toothpaste is essential in our life, when the toothpaste is running out of time, it is very difficult to squeeze out. The inspiration for this design comes from the mouth of the chewing gum. The most difficult Griphook in the top position in the toothpaste extruder.When the toothpaste is used up can be easily opened using the remaining toothpaste ring.
Shenyang Aerosapce University