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use and maintenance of detectors for flammable gases and oxygen (Chinese: 爆炸性环境用气体探测器 第2部分：可燃气体和氧气探测器的选型、安装、使用和维护)
English versions: GB/T 41734
English versions: GB/T 22284-2025
English versions: GBZ42749
2-2024_Chinese: Cybersecurity technology - Entity authentication - Part 2: Mechanisms using authenticated encryption (Chinese: 网络安全技术 实体鉴别 第2部分：采用鉴别式加密的机制)
GB/T 42792-2024 Chinese PDF (GB/T42792-2024) GB/T 11578-2025 use and maintenance of detectorsGB T 42792 2024_Chinese: General technical specification of aluminium alloy tubes, rods, profiles and wires for aviation 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 42792 2024
