Home / Standards / GB/T 3228-2000 GB/T 3228-2000 Abolished Assembly tools for screws and nuts--Machine-operated square drive sockets (“impact”)--Dimensions 螺栓螺母用装配工具 冲击式机动四方传动套筒的尺寸 Standard Type GBT ICS 25.140.01 CCS J48 Status 废止 Issue Date 2000-10-17 Implementation 2001-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A