7530| 25
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如何使立柱晃動(dòng)量最小 |
評(píng)分
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點(diǎn)評(píng)
封口的方管(底部加角筋板)比T字結(jié)構(gòu)要好,軸承連接立柱用T字效果會(huì)好很多!
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