| 摘要 |
A housing (102) for a ring binder mechanism is disclosed as including a central portion with two adjoining skirts (122), in which the skirts are deformable to support a pair of carrier plates, and the housing (102) includes at least two ridges (124) on an upper surface of the central portion, and a recess with a planar bottom is provided between the ridges (124). <IMAGE>
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