Home / Standards / GB/T 37787-2019 GB/T 37787-2019 Active Metallic materials—Determination of microporosity—Fluorescence method 金属材料 显微疏松的测定 荧光法 Standard Type GBT ICS 77.040.99 CCS H24 Status 现行 Issue Date 2019-08-30 Implementation 2020-07-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A