日本一区视频_国产精品微拍_日本高清在线播放一区二区三区 _一女多男np肉辣文小说

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                      Shaft          Size                                          Chain's pitch     Teeth    Chain's type

 1. Not only meet with request of transportation of heavy duty, but also helpful for maintenance and replacement
 2. Well dust proof and water splash proof in operation environment.
 3. Tight and durable, bear more heavier duty.
 4. Temperature range: -10 to +80 ℃