GB/T 37055.1-2018国家物品编码与基础信息规范生产资料第1部分:建筑用钢材国家标准
英文:National articles numbering and basic information specification—Means of production—Part 1:Steel products for constru...
英文:National articles numbering and basic information specification—Means of production—Part 1:Steel products for constru...