Home / Standards / GB/T 24524-2009 GB/T 24524-2009 Abolished Metallic materials - Sheet and strip - Hole expanding test 金属材料 薄板和薄带 扩孔试验方法 Standard Type GBT ICS 77.040.10 CCS H22 Status 废止 Issue Date 2009-10-30 Implementation 2010-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A