GB/T 23519-2023 Chinese PDF (GB/T23519-2023) GB/T 27432-2025 2-2024_Chinese: Cybersecurity technology - Message

2-2024_Chinese: Cybersecurity technology - Message authentication codes(MACs) - Part 2: Mechanisms using a dedicated hash-function (Chinese: 网络安全技术 消息鉴别码 第2部分：采用专门设计的杂凑函数的机制)

English versions: GB/T 5453-2025

English versions: GBZ44938

GB/T 45550-2025_Chinese: Technical specification for honey bee genetic resource survey (Chinese: 蜜蜂遗传资源调查技术规范)

GB/T 23519-2023 Chinese PDF (GB/T23519-2023) GB/T 27432-2025 2-2024_Chinese: Cybersecurity technology - MessageGB T 23519 2023_Chinese: Chlorotris (triphenylphosphine) rhodium (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 23519 2023