Home / Standards / GB/Z 38434-2019 GB/Z 38434-2019 Active Metallic materials—Guide to test pieces preparation for mechanical testing 金属材料 力学性能试验用试样制备指南 Standard Type GBZ ICS 77.040.10 CCS H22 Status 现行 Issue Date 2019-12-31 Implementation N/A Responsible Dept 中国钢铁工业协会 Drafting Unit N/A