ڸٹ·ϸЧ
Դ:http://www.szgoldenboard.com/ | l(f)rg:2019/3/13 | g[Δ(sh)
߶1mһ5mgwЧ^(q)ƽ_(d)1015dB(A)(125Hz40000Hz1/3l)_(d)20dB(A)һvԽxԽh(yun)ЧԽ
1ٹ·p(≤16kg/ m2)ɽϻA(ch)cď(qing)O(sh)Ӌ(j)ҪoF(xin)b
2ٹ·ϺھSo(h)㣬׃ɫϴƉĺQ
3ٹ·Чϵ(sh)NRC≥0.8Ӌ(j)(qun)Rw≥28dB(A)ɝMNc(din)Ҫ
4ٹ·Ϗ(qing)ȸd≥2.34KN/m2׃Σ
5ٹ·gW(xu)ܷ(wn)Ȼh(hun)вl(f)PgF(xin)
6ٹ·Ϙʽ^^Чɸ(j)ÑҪO(sh)Ӌ(j)ɸNͬʽch(hun)CԴhttp://www.szgoldenboard.com/
P(gun)I֣,ĵַhttp://www.szgoldenboard.com/gongsixinwen/12_4496.html
һƪҪSo(h)

