GB 20071-2025 Chinese PDF GB 5009.300-2025 33-2024_Chinese: Specifications for optical fibre

33-2024_Chinese: Specifications for optical fibre test methods - Part 33: Measurement methods and test procedures for mechanical characteristics - Stress corrosion susceptibility (Chinese: 光纤试验方法规范 第33部分：机械性能的测量方法和试验程序 应力腐蚀敏感性参数)

GB/T 10816-2024_Chinese: Zisha ware (Chinese: 紫砂陶器)

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 16981-2025_Chinese: Information technology - Office equipment - Copying machines and multi-function devices - Information to be included in specification sheets and related test methods (Chinese: 信息技术 办公设备 复印机和多功能设备 规格表中包含的基本内容和相关测试方法)

English versions: GB 31648-2025

GB 20071-2025 Chinese PDF GB 5009.300-2025 33-2024_Chinese: Specifications for optical fibreGB 20071 2025_Chinese: The protection of the occupants in the event of a lateral collision (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 20071 2025