| 摘要 |
A cage for keeping pet animals, the cage including a ceiling grating, a first side grating, a second side grating rotatively connected to the first side grating, a base plate secured to the first and second side gratings; and one of the first and the second side grating including a retainer for retaining the other side grating in a rotative manner so as to secure the rotative connection therebetween.
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