升降高度:410-520MM防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅防静电实面靠背椅