适用于平开窗、上悬窗(与铰链配合使用)，用于限制窗扇开启角度。

Suitable for casement window, hanging on the window (in conjunction with the hinge), for limiting the opening Angle of the sash.

youdao

适用于平开窗、上悬窗(与铰链配合使用)，用于限制窗扇开启角度。

Suitable for casement window, hanging on the window (in conjunction with the hinge), for limiting the opening Angle of the sash.

youdao