GB/T 9966.7-2020天然石材试验方法第7部分:石材挂件组合单元挂装强度试验标准
英文:Test methods for natural stone—Part 7:Determination of strength for individual stone anchorages GB/T 9966.7-2020介绍: 国...
英文:Test methods for natural stone—Part 7:Determination of strength for individual stone anchorages GB/T 9966.7-2020介绍: 国...