Aluminum alloy construction and strap tube connection design for easy installation.
铝合金结构，而且束管连接设计便于安装。
Side - by - side construction for easy hookup of left and right channels.
并排的双线非常便于左右声道的识别和连接。
Easy construction for all kinds of new and old buildings.
施工方便，适合在各种新老建筑物中采用。
Easy construction for all kinds of new and old buildings.
施工方便，适合在各种新老建筑物中采用。
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