GB/T 19889.3返回 Back
 
Test or certification item 测试或认证名称: 隔音效果
 
Norm refer 涉及法规: GB/T 50121
 
Refer products 涉及产品:  建材
 
Lead time 周期:  常规服务 regular service 10 工作日 working days ( URGENT service, to be confirm, 加急服务待定 )
 
Sample size 送样规格:  on request 待定
 
Others 其他信息:  
 
Sample report 样本报告:

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Photo for reference 涉及图片:
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