Home / Standards / JB/T 7384.13-1994 JB/T 7384.13-1994 Active 紧固件自攻锁紧螺钉外接圆直径量规 Standard Type JB ICS N/A CCS N/A Status Active Issue Date 1994-07-26 Implementation 1995-07-01 Centralized Committee 机械工业部 Issuing Authority 机械工业部