| 摘要 |
PROBLEM TO BE SOLVED: To make inconspicuous scratches occurred when carrying the block 1. SOLUTION: The scratches made when carrying the block 1 occur at the curved angle portion 3a of projected stripes 3; but it occurs at the boundary between the outward surface of the projected stripes 3 and left and right side surface of the projected stripes 3 since the curved angle portion 3a itself has a parting function, and the curved angle portion 3a as a portion which does not belong to either outward surface nor right and left side surface and thus can be seen by a person and thus the scratches made at the curved angle portions of the projected stripe 3 is inconspicuous.
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