Features: fully sealed, arbitrary curved telescopic, pipe diameter and length does not limit the size can be customized.

特点：完全密封，任意弯曲伸缩，管的直径和长度不限大小都可以定做。

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Thermal expansion pipe, CS type ware, it is by the expansion set, pressure plate and telescopic combination to body.

热力管道伸缩器型号CS型，它是由伸缩套、压盘和伸缩体组合而成。

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The knife bit mainly is composed of a light pipe, a focusing lens, a telescopic contact lever and a handle.

此刀头主要由导光管、聚焦透镜、可伸缩接触杆以及手柄组成。

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