Home / Standards / GB/T 13806.1-1992 GB/T 13806.1-1992 Active Fasteners for fine mechanics--Cross recessed screws 精密机械用紧固件 十字槽螺钉 Standard Type GBT ICS 21.060.10 CCS J13 Status 现行 Issue Date 1992-11-05 Implementation 1993-06-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A