一种半自动门窗插销，属于一种建筑五金材料。

The utility model discloses a semi-automatic bolt for a window (door), belonging to the field of architectural hardware.

youdao

一种半自动门窗插销，属于一种建筑五金材料。

The utility model discloses a semi-automatic bolt for a window (door), belonging to the field of architectural hardware.

youdao