| 摘要 |
A rod assembly comprises a first rod, a second rod, and a fixing element fastening the first rod with the second rod. The first rod at least includes an abutment at one end thereof. The abutment has a front surface conformal to an inner wall of the second rod. A tenon having a polygon cross-section is formed on abutment. The second rod includes a slot and a through hole opposite to the slot. The fixing element is penetrated through second rod to fixedly fasten the first rod with the second rod.
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