| 摘要 |
A stackable cover for a container includes a central portion, a peripheral portion, at two recesses, and an opening. The peripheral portion is formed on a peripheral of the central portion. Each of the recess is formed on a top surface of the central portion with a corresponding protruding part formed on a bottom surface of the central portion. At least one protrusion is formed on a side wall of the recess. The opening is formed on a side edge of the peripheral portion and the central portion. The bottom surface of a stackable cover matches the top surface of another stackable cover, wherein the protruding part of the former stackable cover is engaged into the recess of the later the stackable cover, two or more stackable are capable of being stacked and conveniently stored.
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