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江西金标声屏障 @jxjinbiaogyp07-24-2018
一、声屏障需要维护的原因：1.立柱松动，屏体晃动。主要是由于重力砂浆脱落导致H型钢不稳。公路声屏障需要浇筑一个路面基础，然后...more
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