Home / Standards / QB/T 2212.12-1996 QB/T 2212.12-1996 Active 建筑工具(泥瓦类) 梯形砌铲 Standard Type QB ICS N/A CCS N/A Status Active Issue Date 1996-03-22 Implementation 1996-12-01 Centralized Committee 中国轻工总会 Issuing Authority 中国轻工总会