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。
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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