Home / Standards / QB 1971.1-1994 QB 1971.1-1994 Active 干电池正极帽 普通铜帽 Standard Type QB19 ICS N/A CCS N/A Status Active Issue Date 1994-07-13 Implementation 1995-03-01 Centralized Committee 中国轻工总会 Issuing Authority 中国轻工总会