Home / Standards / GB/T 32.2-1988 GB/T 32.2-1988 Abolished Hexagon bolts with wire holes on head--Reduced shank--Product grade B 六角头头部带孔螺栓 细杆 B级 Standard Type GBT ICS 21.060.10 CCS J13 Status 废止 Issue Date 1988-06-24 Implementation 1989-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A