Home / Standards / DL/T 899-2012 DL/T 899-2012 Abolished 架空线路杆塔结构荷载试验 Standard Type DL 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