Home / Standards / GB/T 13297-2021 GB/T 13297-2021 Active General rules of packaging, marking and quality certification for precision alloys 精密合金包装、标志和质量证明书的一般规定 Standard Type GBT ICS 77.140.99 CCS H58 Status 现行 Issue Date 2021-04-30 Implementation 2021-11-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A