GB/T 20871.61-2024 Chinese PDF (GB/T20871.61-2024) GB/T 41869.4-2024 GB/T 28511

GB/T 28511

English versions: GB/T 29469-2024

English versions: GB/T 26940-2023

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)

9-2025_Chinese: Technical specification for animal genetic resource survey - Part 9: Poultry (Chinese: 畜禽遗传资源调查技术规范 第9部分：家禽)

GB/T 20871.61-2024 Chinese PDF (GB/T20871.61-2024) GB/T 41869.4-2024 GB/T 28511GB 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