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English versions: GB/T 44955-2024
English versions: GB/T 24438
1-2024_Chinese: Technical specification for OPC unified architecture and 5G integration - Part 1: General requirements (Chinese: OPC统一架构与5G集成技术规范 第1部分：通用要求)
GB/T 45402-2025_Chinese: Smart city - City intelligent center - Reference architecture (Chinese: 智慧城市 城市智能中枢 参考架构)
GB/T 45309-2025 Chinese PDF (GB /T45309-2025) GB/T 45266-2025 English versions: GB/T 44955-2024GB T 45309 2025_Chinese: Guidelines for classification and coding of enterprise procurement supplies (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45309 2025
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