Home / Standards / DL/T 1121-2009 DL/T 1121-2009 Abolished 燃煤电厂锅炉烟气袋式除尘工程技术规范 Standard Type DL ICS N/A CCS N/A Status Abolished Issue Date 2009-07-01 Implementation 2009-12-01 Centralized Committee 国家能源局 Issuing Authority 国家能源局