GB/T 37600.6-2018全国主要产品分类产品类别核心元数据第6部分:钟表国家标准
英文:National central product classification—Product category core metadata—Part 6: Clock and watch GB/T 37600.6-2018介绍: 国...
英文:National central product classification—Product category core metadata—Part 6: Clock and watch GB/T 37600.6-2018介绍: 国...