Home / Standards / JB/T 4209.5-1996 JB/T 4209.5-1996 Abolished 冷镦六角头螺栓模具细杆凹模A型 Standard Type JB ICS N/A CCS N/A Status Abolished Issue Date 1996-09-03 Implementation 1997-07-01 Centralized Committee 机械工业部 Issuing Authority 机械工业部