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English versions: GB/T 45529-2025
English versions: GB/T 26361-2025
2-2023_Chinese: Industrial fans - Determination of fan sound power levels under standardized laboratory conditions - Part 2: Reverberant room method (Chinese: 工业风机 标准实验室条件下风机声功率级的测定 第2部分：混响室法)
English versions: GB/T 34425-2023
English versions: GB/T 45173-2024
GB/T 34120-2023 Chinese PDF (GB/T34120-2023) GB/T 12979-2024 English versions: GB/T 45529-2025GB T 34120 2023_Chinese: Technical requirements for power conversion system of electrochemical energy storage system (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 34120 2023
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