GB/T 13477.4-2017建筑密封材料试验方法第4部分:原包装单组分密封材料挤出性的测定国家标准
英文:Test method for building sealants—Part 4:Determination of extrudability of one-component sealants GB/T 13477.4-2017介绍...
英文:Test method for building sealants—Part 4:Determination of extrudability of one-component sealants GB/T 13477.4-2017介绍...