| 摘要 |
PURPOSE: A vessel which keeps constant temperature is provided to use a hot pack or ice pack additionally. CONSTITUTION: A vessel(10) for keeping constant temperature comprises a storage vessel(100) and an upper lid(120), wherein the storage vessel is coupled to a lower body(110). The vessel has an open upper portion to include or separate a hot pack or ice pack, and an insulating material is prepared between an inner plane and an outer plane to keep constant temperature.
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