中文无码人妻在线一区不卡_精品免费一区二区三区av_精品亚洲一区二区三区啪啪_国产精品福利在线观看

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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 ℃