Home / Standards / GB/T 38222-2019 GB/T 38222-2019 Active Metallographic examination method of medium and high strength stainless steel castings for general engineering applications 工程结构用中、高强度不锈钢铸件金相检验 Standard Type GBT ICS 77.040.20 CCS J31 Status 现行 Issue Date 2019-10-18 Implementation 2020-05-01 Responsible Dept 国家标准委 Drafting Unit N/A