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  a(chn)ƷB     JRp|(zh)ߏˮľмͺ••a(chn)Ʒɷǽٗlװ•^ͷǽٱM_e≥20ϰ 13833648003
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a(chn)ƷB
    JRp|(zh)ߏˮľмͺ••a(chn)Ʒɷǽٗlװ塢•^ͷǽٱMɡ_e≥20ϰ(ni)•Ϟ48Kg/m3xIJްS`ܶSƫ^±4s|(zh)3Ҙ˜Ҫ󲻴0.3%ϵ(sh)NRC1õ••ͬrһWܡbǰɇͿNɫMҕXҪ
g(sh)ָ
ƽ•ϵ(sh)            ≥0.60      
  •                ≥37dB
ܶȣ             44kg/m2                     
ʹÉ              20
Ɖdɣر(sh)13.5 
_ܣ _6Οo؞ͨѼy
•zyϵ(sh)
 

 

a(chn)Ʒַhttp://m.szyuhui.cn/shuinishengpingzhang/263_2307.html

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