BS6401:1983 Method for measurement, in the laboratory, of the specific optical density of smoke generated by materials.
BS6401:1983 材料生成烟雾的光学比密度的实验室测量方法.
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BS6401:1983 Method for measurement, in the laboratory, of the specific optical density of smoke generated by materials.
BS6401:1983 材料生成烟雾的光学比密度的实验室测量方法.
中国防火网全国免费咨询电话：400-666-7290
网址：www.firete.com
邮箱：info@firete.com
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