最終更新日:2022/12/24
The opinion of our shoe manufacturer friends is very definitely that a Mullen test or bursting strength test, which may be useful as an entity in itself, has no relationship at all to lastability of leather.
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The opinion of our shoe manufacturer friends is very definitely that a Mullen test or bursting strength test, which may be useful as an entity in itself, has no relationship at all to lastability of leather.