| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus having a sealing die capable of accommodating for containers of various shapes and various sizes and having superior characteristics in expenditure, labor, storage and maintenance against some problems in which it is needed to arrange a seal die corresponding to each of the various kinds of containers in the prior art connecting method. SOLUTION: There is provided a seal apparatus that the sealing die has an extendable or retractable structure.
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