Home / Standards / GB/T 40517-2021 GB/T 40517-2021 Active Solar thermal storage system for low and medium temperature application 太阳能中低温蓄热装置 Standard Type GBT ICS 27.160 CCS F12 Status 现行 Issue Date 2021-08-20 Implementation 2022-03-01 Responsible Dept 国家标准委 Drafting Unit N/A