Home / Standards / QB/T 2049.11-2013 QB/T 2049.11-2013 Active 灯用玻壳 C型、E型、F型和PAR型玻壳尺寸系列 Standard Type QB ICS N/A CCS N/A Status Active Issue Date 2013-10-17 Implementation 2014-03-01 Centralized Committee 工业和信息化 Issuing Authority 工业和信息化