Home / Standards / GB/T 2672-2004 GB/T 2672-2004 Abolished Hexalobular socket pan head screws 内六角花形盘头螺钉 Standard Type GBT ICS 21.060.10 CCS J13 Status 废止 Issue Date 2004-02-10 Implementation 2004-08-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会