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English versions: GB/T 45375-2025
GB 20943-2025_Chinese: Minimum allowable values of energy efficiency and energy efficiency grades for AC-DC and AC-AC power supplies (Chinese: 交流-直流和交流-交流电源能效限定值及能效等级)
2-2025_Chinese: Metallic materials - Vickers hardness test - Part 2: Verification and calibration of testing machines (Chinese: 金属材料 维氏硬度试验 第2部分：硬度计的检验与校准)
1-2024_Chinese: Variable-frequency drive above 1 kV and not exceeding 35 kV - Part 1: Technical conditions (Chinese: 1 kV以上不超过35 kV的通用变频调速设备 第1部分：技术条件)
English versions: GB/T 31901-2024
GB/T 45447-2025 Chinese PDF (GB /T45447-2025) GB/T 35270-2024 English versions: GB/T 45375-2025GB T 45447 2025_Chinese: Revert materials for cast superalloy (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45447 2025
