| 摘要 |
A tool box includes a cover shell having a rectangular socket on a back wall thereof, a bottom shell having a rectangular socket on a back wall thereof, and a hinge connected between the rectangular socket of the cover shell and the rectangular socket of the bottom shell permitting the cover and bottom shells to be turned on the hinge relative to each other, wherein the rectangular socket of either shell has two opposite projecting portions on the inside; the hinge is integrally molded from a resilient plastic material having two symmetrical parts linked by a grooved horizontal connecting portion, each part of the hinge having two hooks inserted into the rectangular socket of either shell and engaged with the projecting portions of the respective rectangular socket.
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