| 摘要 |
PROBLEM TO BE SOLVED: To provide a mouth sealed bag in the inside of which dust and the like can be prevented from coming into the inside until the time of use and the inside of which can be kept hygienic. SOLUTION: The bag sealed at its mouth comprises a bag main body and a mouth for pouring-in- and -out, and the mouth for pouring-inand -out is sealed up at its mouth part.
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