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作者:<a href="index.php?action=showuser&amp;userid=2&amp;hash=">admin</a><br />时间:2017-05-21 19:36<br />分类:<a href="index.php?action=list&amp;cid=8&amp;hash=">生活点滴</a><br />内容:
根据youtube的视频，在amz买了弹簧和撬棒。。HD的老头吓唬我，说很危险，自己安装会kill u 


只买了右边的，发现完全力不够啊，门只能开一半    youtube的视频其实是教你怎么改造成两边的


http://ddmgaragedoors.com/diy-instructions/how-to-measure-torsion-springs.php



https://www.youtube.com/watch?v=02KaMvcbuDc&amp;feature=youtu.be


 


amz的链接 https://www.amazon.com/gp/product/B00H2K3Z6W


 


 
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