Home / Standards / GB/T 15711-2018 GB/T 15711-2018 Active Inspection of non-metallic inclusions of steel—Etching test method of tower samples 钢中非金属夹杂物的检验 塔形发纹酸浸法 Standard Type GBT ICS 77.040.99 CCS H24 Status 现行 Issue Date 2018-05-14 Implementation 2019-02-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A