Home / Standards / GB/T 13681.2-2010 GB/T 13681.2-2010 Abolished Hexagon weld nuts with flange 焊接六角法兰面螺母 Standard Type GBT ICS 21.060.20 CCS J13 Status 废止 Issue Date 2011-01-10 Implementation 2011-10-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A