Home / Standards / GB/T 4297-2004 GB/T 4297-2004 Active Inspection method for macrostructure of wrought magnesium alloy products 变形镁合金低倍组织检验方法 Standard Type GBT ICS 77.120.20 CCS H61 Status 现行 Issue Date 2004-04-30 Implementation 2004-10-01 Responsible Dept 中国有色金属工业协会 Drafting Unit 中国有色金属工业协会