telescope (v)

The inner profile, which is guided by a sliding bearing in the telescope, is secured with the Telescope Securing Set.

The sliding ????????? profile is secured with the Telescope Securing Set.

The Line 8 grooves on the outer Telescope Profile can be used to attach load-bearing and connecting structures.

sich ineinander schieben lassen (v)

（使某物）变短（叠缩在一起） (v)