GB/T 9966.2-2020天然石材试验方法第2部分:干燥、水饱和、冻融循环后弯曲强度试验标准
英文:Test methods for natural stone—Part 2:Determination of dry,wet and after freezing flexural strength GB/T 9966.2-2020介...
英文:Test methods for natural stone—Part 2:Determination of dry,wet and after freezing flexural strength GB/T 9966.2-2020介...