JIS A 1405-2标准 音量吸收测试
Test item 测试名称: Acoustics-sound absorption coefficient and impedance in impedance tubes 音量吸收
Sample size 送样规格:4m2
Lead time 测试周期: 常规 Regular 16 working days
Others 其他信息:
Sample for reference 参考图片:
>Sample Report 报告样本:
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