Home / Standards / GB/T 28056-2011 GB/T 28056-2011 Abolished General specification for gas pass heat recovery boiler 烟道式余热锅炉通用技术条件 Standard Type GBT ICS 27.060.30 CCS J98 Status 废止 Issue Date 2011-12-30 Implementation 2012-07-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委