Home / Standards / SY/T 4083-2012 SY/T 4083-2012 Abolished 电热法消除管道焊接残余应力热处理工艺规范 Standard Type SY ICS N/A CCS N/A Status Abolished Issue Date 2012-08-23 Implementation 2012-12-01 Centralized Committee 国家能源局 Issuing Authority 国家能源局