
Pedestrian Doorsets, Industrial, Commercial, Garage Doors And Openable Windows - Product Standard, Performance Characteristics - Fire Resisting And/Or Smoke Control Characteristics
出版:British Standards Institution

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Pedestrian Doorsets, Industrial, Commercial, Garage Doors And Openable Windows - Product Standard, Performance Characteristics - Fire Resisting And/Or Smoke Control Characteristics
出版:British Standards Institution
专家解读视频