GB/T 1966-2024 Chinese PDF (GB/T1966-2024) GB/T 17001.5-2024

GB/T 1966-2024 Chinese PDF (GB/T1966-2024) GB/T 17001.5-2024GB T 1966 2024_Chinese: Porous ceramics Determination of apparent porosity and bulk density (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 1966 2024

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 20299

English versions: GB 25502-2024

GB/T 45042-2024_Chinese: Textiles - Quantitative chemical analysis - Mixtures of polyacrylonitrile preoxidized fiber and certain other fibers (Chinese: 纺织品 定量化学分析 聚丙烯腈预氧化纤维与某些其他纤维的混合物)

GB/T 4948-2025_Chinese: Sacrificial anode of aluminum alloy (Chinese: 铝合金牺牲阳极)

2-2025_Chinese: Information technology - Abstract Syntax Notation One (ASN

4-2023_Chinese: Agricultural irrigation equipment - Sprinklers - Part 4: Test methods for durability (Chinese: 农业灌溉设备 喷头 第4部分：耐久性试验方法)

English versions: GB 28007-2024

English versions: GB 30251-2024

English versions: GB/T 44961-2024

GB 44170-2024_Chinese: Safety management requirements for flood and typhoon control in shipyard (Chinese: 船舶制造防汛防台安全管理要求)

GB/T 45628-2025_Chinese: Artificial intelligence - Knowledge graph - Knowledge exchange protocol (Chinese: 人工智能 知识图谱 知识交换协议)