GB/T 20871.61-2024 Chinese PDF (GB/T20871.61-2024) GB/T 41869.4-2024 GB/T 14285-2023_Chinese: Technical code for

GB/T 14285-2023_Chinese: Technical code for relaying protection and security automatic equipment (Chinese: 继电保护和安全自动装置技术规程)

GB/T 45446-2025_Chinese: Interface specification for signal in space of BeiDou navigation satellite system precise point positioning service (Chinese: 北斗卫星导航系统精密单点定位服务空间信号接口规范)

GB/T 28511

3-2025_Chinese: Household electric direct-acting room heaters - Methods for measuring performance - Part 3: Additional provisions for the measurement of the radiation efficiency (Chinese: 家用直接作用式房间电加热器 性能测试方法 第3部分：辐射效率测量的附加规定)

1-2025_Chinese: Rules for agricultural seed testing - Part 1: General directives (Chinese: 农作物种子检验规程 第1部分：总则)

GB/T 20871.61-2024 Chinese PDF (GB/T20871.61-2024) GB/T 41869.4-2024 GB/T 14285-2023_Chinese: Technical code forGB T 20871. 61 2024_Chinese: Organic light emitting diode(OLED) displays Part 6 1: Measuring methods of optical and electro optical parameters (Chinese: 6 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20871. 61 2024