Home / Standards / HB 7437-2013(2017) HB 7437-2013(2017) Active A286MJ螺纹扁圆头锥端螺栓 Standard Type HB74 ICS N/A CCS N/A Status Active Issue Date 2013-10-13 Implementation 2014-03-01 Centralized Committee 工业和信息化部 Issuing Authority 工业和信息化部