Home / Standards / JB/T 2728.4-1996 JB/T 2728.4-1996 Abolished 电机用气体冷却器 挤片式气体冷却器技术要求 Standard Type JB ICS N/A CCS N/A Status Abolished Issue Date 1996-09-03 Implementation 1997-01-01 Centralized Committee 机械工业部 Issuing Authority 机械工业部