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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)
English versions: GB/T 45512-2025
English versions: GB/T 45078-2024
English versions: GB/T 45535-2025
English versions: GB/T 18375-2024
GB/T 45441-2025 Chinese PDF (GB /T45441-2025) GB/T 18376.2-2024 1-2024_Chinese: Technical specification for OPCGB T 45441 2025_Chinese: Greenhouse gases Quantification methods and requirements of carbon footprint of products Plastic products (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45441 2025
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