同步傾仰機構，適用中、大型椅. 符合人體工學，椅背和坐墊傾仰比例為 2:1. 傾仰功能，4 段式鎖定. 傾仰最大角度 21 度. 椅背安全回彈裝置，氣壓升降. 彈簧鬆 /緊調整旋鈕.鎖孔中心孔距：152 × 200 mm。
Synchronized mechanism
For medium and large office chairs. Ergonomic design.
Backrest and seat,tilting at a 2:1 ratio.
Tilting function, 4-stage
locking.
Tilting ride : Max. 21°.
Backrest return-preventing system.
Gas lift
height adjustment.
Spring tension adjustment
knob.
Hole space : 152 × 200 mm (W×L)
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