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GB/T 45308-2025_Chinese: Railway applications - Rolling stock - Technical requirements for network time synchronization (Chinese: 轨道交通 机车车辆 网络时间同步技术要求)
English versions: GB/T 45259-2025
1-2024_Chinese: Environmental management - Guidelines for establishing good practices for combatting land degradation and desertification - Part 1: Good practices framework (Chinese: 环境管理 建立防治土地退化和荒漠化良好实践指南 第1部分：良好实践框架)
English versions: GB/T 45197-2025
GB/T 45406-2025 Chinese PDF (GB /T45406-2025) GB/T 44960-2024 GB/T 45308-2025_Chinese: Railway applications -GB T 45406 2025_Chinese: Security technical requirements for critical network devices Programmable logic controller(PLC) (Chinese: PLC) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45406 2025
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