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English versions: GB/T 45311-2025
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)
11-2025_Chinese: Safety requirements for electrical equipment for measurement
GB/T 45462-2025_Chinese: Test methods for the performance of gas-phase air cleaning media and devices (Chinese: 气相空气净化材料及装置性能试验方法)
GB/T 16439-2024_Chinese: General specification for AC servo system (Chinese: 交流伺服系统通用技术规范)
GB/T 28924-2023 Chinese PDF (GB/T28924-2023) GB/T 14663-2024 English versions: GB/T 45311-2025GB T 28924 2023_Chinese: Guides for calculating energy efficiency index for iron and steel enterprises (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 28924 2023
