Home / Standards / GB/T 22640-2008 GB/T 22640-2008 Abolished Test method of C-Ring sample to stress-corrosion cracking for wrought aluminium and aluminium alloys products 铝合金加工产品的环形试样应力腐蚀试验方法 Standard Type GBT ICS 77.040.30 CCS H25 Status 废止 Issue Date 2008-12-29 Implementation 2009-11-01 Responsible Dept 中国有色金属工业协会 Drafting Unit 中国有色金属工业协会