久久久欧美日韩免费观看|国产又粗又硬又长又爽|无码不卡视频在线观看|欧美色一区二区三区四区|久草新视频在线观看12|亚洲国产精品人人做人人爱

很抱歉,您尚未登錄!
VIP會員登陸后可以查閱當(dāng)前板塊內(nèi)容,請登陸后查看!
請點擊登錄

  • TOP
  • 手機版
    全部提示消息

    易之家外貿(mào)SNS社區(qū) Tradesns foreign trade community
    當(dāng)前所在頁面位置: 首頁 > 心情隨筆
    文章作者
    Yukaren
    關(guān) 注
    加 好 友
    站 內(nèi) 消 息
    作者文章精選
    查看更多>
    瀏覽量:202 | 回復(fù):0 | 發(fā)布時間:2025-02-05 13:57:53
    Digital Rail Cant Inclination Measuring DeviceRail Cant Measurement Device, The main part of the wheel tread is an inward inclination of 1:40 . In order to make the top of the rail track under the wheel load with cone tread stressed uniformly ,decrease load offset, reduce rail web stress , avoid slit between rail head and rail web, the railway track shall not be laid upright for straight line, it shall be inward inclined ,this inward inclination of rail called Rail Cant, it is a high precision ,portable , numeric rail geometrical testing tool.
    關(guān) 注 (1
    評 論(0)
    分 享
    熱門
    相關(guān)