Home / Standards / CB 777-1975 CB 777-1975 Abolished 柴油机管系直角接头 Standard Type CB77 ICS N/A CCS N/A Status Abolished Issue Date 1975-01-01 Implementation 1976-05-01 Centralized Committee 中国船舶工业集团公司 Issuing Authority 中国船舶工业集团公司