Home / Standards / GB/T 40093-2021 GB/T 40093-2021 Active Life cycle assessment method for transformer 变压器产品生命周期评价方法 Standard Type GBT ICS 29.020 CCS K04 Status 现行 Issue Date 2021-05-21 Implementation 2021-12-01 Responsible Dept 国家标准委 Drafting Unit N/A