Test or certification item 测试或认证名称: 防火止回阀的耐火性能 
 
Refer products 涉及产品:  建材
 
Lead time 周期:  常规服务 regular service 12 工作日 working days ( URGENT service, to be confirm, 加急服务待定 )
 
Sample size 送样规格:  3pcs finished products 三个成品
 
Others 其他信息:  
 
Photo for reference 涉及图片:
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Sample report 样本报告:
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