| 摘要 |
PROBLEM TO BE SOLVED: To provide a water cleaner hard to make the adhesion of stains occur and easy in daily cleaning. SOLUTION: At least one member constituting the outer surface of the water cleaner is constituted of stainless steel, ceramic or a fluoroplastic resin or at least a part of the outer surface of the water cleaner is covered with stainless steel, ceramic, fluoroplastic resin or a film.
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