GB/T 45506-2025 Chinese PDF (GB /T45506-2025) GB/T 29631-2025 20-2024_Chinese: Chemical analysis methods for

20-2024_Chinese: Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides - Part 20: Determination of minor amounts of fluorine and chlorine in rare earth oxides - Ion chromatography method (Chinese: 稀土金属及其氧化物中非稀土杂质化学分析方法 第20部分：稀土氧化物中微量氟、氯的测定 离子色谱法)

GB/T 27530-2025_Chinese: Diagnostic techniques for bovine haemorrhagic septicaemia (Chinese: 牛出血性败血症诊断技术)

GB/T 45224-2025_Chinese: Smart city - Technical requirement for intelligent monitoring of urban transport infrastructure (Chinese: 智慧城市 城市交通基础设施智能监测技术要求)

GB/T 45402-2025_Chinese: Smart city - City intelligent center - Reference architecture (Chinese: 智慧城市 城市智能中枢 参考架构)

GB/T 23301-2024_Chinese: Cast aluminum alloys for automobile wheels (Chinese: 汽车车轮用铸造铝合金)

GB/T 45506-2025 Chinese PDF (GB /T45506-2025) GB/T 29631-2025 20-2024_Chinese: Chemical analysis methods forGB T 45506 2025_Chinese: Residual resistance ratio measurement Residual resistance ratio of cavity grade Nb superconductors (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45506 2025