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  •   Qingdao Yutong Concrete Hardware Co.,Ltd. 人妻引诱中文字幕_五月丁香啪啪激情综合色九色_色噜噜狠狠爱综合视频_男人的天堂免费视频一色屋  
      Qingdao Yutong Concrete Hardware Co.,Ltd.

      Construction Hardware
     
    Adjustable Screw Jack


    Weight:12 lbs/4x4 and 21 lbs/6x6 -4"x4"x5" square tubing
    1-1/2" x 6-1/2" pipe
    1-1/4 acme threads
    14.25 overall length screwed down .
    Full 6" adjustment
    Inner pipe is packed with grease to prevent rusting.
    Allowable loads for 4x4 screw jack is 15000 lbs and 30,000 lbs for a fully  extended 6x6 screw jack
     

     

     
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