| 摘要 |
An angle bar rack formed of horizontal bars and vertical angle bars, the horizontal bars having hook holes and recessed retaining holes respectively disposed at the inner sidewall of each horizontal bar adjacent to the hook holes, the vertical angle bars having upward hooks respectively hooked in the hook holes of the horizontal bars, each upward hook having a retaining portion curved outwards and respectively engaged into the recessed retaining holes of the horizontal bars.
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