Home / Standards / JB/T 5298-1991 JB/T 5298-1991 Abolished 管线用钢制平板闸阀 Standard Type JB ICS N/A CCS N/A Status Abolished Issue Date 1991-07-21 Implementation 1992-07-01 Centralized Committee 机械电子工业部 Issuing Authority 机械电子工业部