GB/T 21267-2024 Chinese PDF (GB/T21267-2024) GB/T 45294-2025 302-2024_Chinese: Electricity metering equipment(AC) -

302-2024_Chinese: Electricity metering equipment(AC) - Particular requirements - Part 2: Static harmonic meters for active energy (Chinese: 电测量设备（交流） 特殊要求 第2部分：静止式谐波有功电能表)

GB/T 45223-2025_Chinese: Technical specification for communication architecture and interface of low voltage auxiliary power systems for electric power stations and substations (Chinese: 电力厂站低压用电系统信息架构及接口技术规范)

3-2024_Chinese: Graphic technology - Prepress digital data exchange - Part 3: CIELAB standard colour image data(CIELAB/SCID) (Chinese: 印刷技术 印前数据交换 第3部分： CIELAB标准彩色图像数据（CIELAB/SCID）)

GB/T 45239-2025_Chinese: Evaluation methods of nocturnal blue light radiation hazards (Chinese: 夜间蓝光辐射危害的评价方法)

GB/T 21267-2024 Chinese PDF (GB/T21267-2024) GB/T 45294-2025 302-2024_Chinese: Electricity metering equipment(AC) -GB T 21267 2024_Chinese: Petroleum and natural gas industries Procedures for testing casing and tubing connections (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 21267 2024