Home / Standards / GB/T 27552-2011 GB/T 27552-2011 Abolished Destructive tests on welds in metallic materials - Microhardness testing of welded joints 金属材料焊缝破坏性试验 焊接接头显微硬度试验 Standard Type GBT ICS 25.160.40 CCS J33 Status 废止 Issue Date 2011-11-21 Implementation 2011-06-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委