www.eliters.cn-色一情一区二区三区四区,亚洲天堂在线观看,丰满少妇作爱视频免费观看,毛茸茸厕所偷窥XXXX

  • <kbd id="kcyi0"><acronym id="kcyi0"></acronym></kbd>
  • <th id="kcyi0"><s id="kcyi0"></s></th>
     Your current location: > Home  >Products  >Gear series
    Crowned Tooth Gear
    Hits:752  Addtiime:2019-10-21 [Print] [Back]

    Gears are toothed mechanical parts which can be engaged with each other. It is applied widely in the field of mechanical transmission and the whole mechanical field. The modern gear technology has the following advantages: the module of gear is 0.004 to 100mm; the gear diameter is 1 to 150mm; the transmitted power is up to a hundred thousand kilowatts; the rotating speed is up to hundreds of thousands of revolutions per minute; and the highest circumferential velocity is up to 300m/s.
    The accuracy and finish of straight gears, contrate gears, drum gears, spiral bevel gears and helical gears produced by our company have reached the advanced level, and are constantly improved.

    Copyright © 2019    Copyright Wuxi Ruier Precision Machinery Co., Ltd.  蘇ICP備09073427號-3

    大香伊人久久精品一区二区| 高清在线一区二区三区亚洲综合| 久久中文精品无码中文字幕| 国产黄片啊啊啊啊视频在线观看| 国产一级无码免费不卡| 国产AV无码专区亚洲AV| 星空无限传媒免费观看电视剧| 国精产品一二二线精华液| 91精品国产综合久久精品| 午夜久久久久久亚洲国产精品|