
BS EN 15651-1. Sealants for joints in building construction. Definitions, requirements and evaluation of conformity. Part 1. Sealants for facade
出版:British Standards Institution

专家解读视频
BS EN 15651-1. Sealants for joints in building construction. Definitions, requirements and evaluation of conformity. Part 1. Sealants for facade
出版:British Standards Institution
专家解读视频