产品描述
本机构为自适应同步倾仰底盘，拥有4档锁定，具有回力安全保护功能，拉线A可使底盘自由升降；拉线B可调节座和背的角度，座的调节角度为 背的调节角度为
Self weight adjusting synchronized mechanism with backrest return prevention safety function and 4 locking positions: Paddle A is for height adjustment, paddle B is for seat and back movement. The seat angle is in the range of , and the back angle is .
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