过孔滑环介绍，主要用于传输精密信号、微弱电流、大电流、高电压；具有低扭矩，低损耗免维护；低电气噪音、超长寿命等主要特点
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| VIDEOS | |||
| MP4 | N/A | 480P | Download |
| MP4 | N/A | 480P | Download |
| MP4 | N/A | 360P | Download |
| MP4 | N/A | 360P | Download |
| AUDIO | |||
| MP4 | N/A | mp4a.40.2 | Download |
| MP4 | N/A | mp4a.40.2 | Download |
| MP4 | N/A | mp4a.40.2 | Download |
| THUMBNAILS | |||
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JPEG | Origin Image | Download |
过孔滑环介绍，主要用于传输精密信号、微弱电流、大电流、高电压；具有低扭矩，低损耗免维护；低电气噪音、超长寿命等主要特点
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