Roll mat ---Can be cut and fit into different types of cavity wall ,can be installed into any position of the construction ,especially the long and nonblocked area,such as the roofing of metal building ;the slot of power lines ,water pipes .
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- 卷毡---经切割可以用于任意尺寸的墙体空腔,安装于建筑的任意部位,特别是长而无阻塞的区域,如钢结构屋顶;电线管、水管通过的槽隙等。