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GB/T 20907-2024 Chinese PDF (GB/T20907-2024) GB/T 44972-2024 English versions: GB/T 45291-2025
GB/T 20907-2024 Chinese PDF (GB/T20907-2024) GB/T 44972-2024 English versions: GB/T 45291-2025
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Description
English versions: GB/T 45291-2025
English versions: GB/T 45531-2025
1-2024_Chinese: Information technology - Security techniques - Non-repudiation - Part 1: General (Chinese: 信息技术 安全技术 抗抵赖 第1部分：概述)
GB/T 19520
GB/T 20907-2024 Chinese PDF (GB/T20907-2024) GB/T 44972-2024 English versions: GB/T 45291-2025GB T 20907 2024_Chinese: Technical specification for automatic fare collection system of urban rail transit (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20907 2024
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