folding ladder

In a typical cuckoo clock, a bird is pushed out the door by a folding ladder and does not move its body.

在普通的布谷鸟钟表上面，一只小鸟会被折叠梯推出门来，小鸟的身体不会移动。

The invention discloses a folding step ladder, a folding ladder bar and a folding chair.

本发明公开了一种折叠梯凳及折叠梯吧及折叠椅。