Home / Standards / DL/T 681-1999 DL/T 681-1999 Abolished 磨煤机耐磨件技术条件 Standard Type DL ICS N/A CCS N/A Status Abolished Issue Date 1999-08-02 Implementation 1999-10-01 Centralized Committee 电力工业部 Issuing Authority 电力工业部