| 摘要 |
A mask is stored in a mask case (C). The mask case (C) is provided with a reinforcing member having strength corresponding to the load of the mask, on a contact section with a transfer vehicle (V) and a transfer apparatus (H1), which are external apparatuses whereupon the mask case is to be placed. The transfer vehicle (V) and the transfer apparatus (H1), which transfer the mask, support the reinforcing member of the mask case (C) wherein the mask is stored, and have a plurality of transfer balls (43, 52), respectively, as case supporting sections, for suppressing friction generated between the reinforcing member and themselves.
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