Home / Standards / GB/T 26956 GB/T 26956 Active Destructive tests on welds in metallic materials - Etchants for macroscopic and microscopic examination 金属材料焊缝破坏性试验 宏观和微观检验用侵蚀剂 Standard Type GBT ICS 25.160.40 CCS J33 Status 现行 Issue Date 2011-07-19 Implementation 2012-03-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委