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English versions: GB/T 20244-2025
1) - Part 2: Information object specification (Chinese: 信息技术 抽象语法记法一（ASN
GB/T 25045-2025_Chinese: Basalt fiber roving (Chinese: 玄武岩纤维无捻粗纱)
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)
English versions: GB/T 20972
GB/T 20931.12-2025 Chinese PDF (GB /T20931.12-2025) GB 39800.8-2024 English versions: GB/T 20244-2025GB T 20931. 12 2025_Chinese: Methods for chemical analysis of lithium Part 12: Determination of impurity element contents Inductively coupled plasma atomic emission spectrometry (Chinese: 12 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20931. 12 2025
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