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使用方式 HOW TO USE
椅墊上配置握把可輕鬆拉起椅背。
The handle of cushion can let user to pull up chair’s back smoothly.
設置不同位置的卡榫，讓使用者可自行調整椅背角度。
Set the different positions of the tenon, so that users can adjust the back angle.
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DUALPHIN
