一种定义
四种语言
The next step involves connecting the Runway Profile with the support structure.
You must not make any design modifications to the runway slide system yourself.
In the case of cranes, I-beams are often used directly as the runway for under-running trolleys.
Plastic wheel rim that leaves no visible tracks behind it.
They can roll against a track in the lower part and upper part.
In case of unforeseen events, a tailhook secures the track guidance.