Home / Standards / JB/T 7260-1994 JB/T 7260-1994 Abolished 空气分离设备铜焊缝射线照相和质量分级 Standard Type JB ICS N/A CCS N/A Status Abolished Issue Date 1994-07-18 Implementation 1995-07-01 Centralized Committee 机械工业部 Issuing Authority 机械工业部