Home / Standards / GB/T 25047-2010 GB/T 25047-2010 Abolished Metallic materials - Tube - Ring-expanding test 金属材料 管 环扩张试验方法 Standard Type GBT ICS 77.040.10 CCS H23 Status 废止 Issue Date 2010-09-02 Implementation 2011-06-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A