Home / Standards / GB/T 28056 GB/T 28056 Active Specification for heat recovery boilers 余热锅炉技术规范 Standard Type GBT ICS 27.060.30 CCS J98 Status 现行 Issue Date 2025-10-05 Implementation 2026-05-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委