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Dongwu(N),suzhou,Jiangsu,China China
polyester fiber is sound-absorbing board can sound-absorbing (voice after polyester fiber sound-absorbing panels in cavity formed by sound energy into
Sound absorption coefficient: average absorption coefficient of 0.5 or so, on the low frequency effect is ideal.
Persona de contacto cheng manager
Dirección Dongwu(N), suzhou, Jiangsu
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