Home / Standards / JB/T 5504-1991 JB/T 5504-1991 Abolished MPW碗式磨煤机 Standard Type JB ICS N/A CCS N/A Status Abolished Issue Date 1991-07-09 Implementation 1992-07-01 Centralized Committee 机械电子工业部 Issuing Authority 机械电子工业部