| 摘要 |
The cleaning sponge, made of a foam-type material, has a cleaning surface (1) on the under side, and sealed holding surfaces (2,3,4). The holding surfaces (2,3,4) are sealed by a coating mass contg. polypropylene or acrylic resin. The pores of the foam material are sealed at the holding surfaces (2,3,4) by closing with an adhesive contg. polypropylene or acrylic resin.
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