DIN 4109返回 Back
 
Test item 测试名称:
Sound insulation 建筑物噪声
 
Lead time 测试周期: 常规 regular 8 weeks working days
 
Sample size 送样规格: 4pcs finished products 
 
Others 其他信息:

Photo for reference 参考图片:
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Sample report 样本报告:
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