| 摘要 |
PROBLEM TO BE SOLVED: To enhance the strength of the bottom of a nursery box for shape- keeping. SOLUTION: This nursery box has many openings 4 arranged longitudinally and latitudinally at the bottom 3 and integrally formed side walls 2, and further forming each at least one integrally formed protruded part 5 in longitudinal and latitudinal directions on a crosspiece part 6 between one openings 4.
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