Home / Standards / DL/T 5074-1997 DL/T 5074-1997 Active 火力发电厂岩土工程勘测技术规程 Standard Type DL ICS N/A CCS N/A Status Active Issue Date 1997-09-02 Implementation 1998-01-01 Centralized Committee 电力工业部 Issuing Authority 电力工业部