GB/T 17626.30-2023 Chinese PDF (GB/T17626.30-2023) GB/T 17643-2025 GB/T 45521-2025_Chinese: Smart community infrastructures

GB/T 45521-2025_Chinese: Smart community infrastructures - Guidelines on data exchange and sharing for community infrastructures based on geographic information (Chinese: 智慧城市基础设施 基于地理信息的城市基础设施数据交换与共享指南)

1-2024_Chinese: Electronic data interchange for administration

N-dimethylformamide in toys and children's products - Gas chromatography-mass spectrometry (Chinese: 玩具及儿童用品材料中N

2-2025_Chinese: Assembled spectacles - Part 2: Power-variation prescription assembled spectacles (Chinese: 配装眼镜 第2部分：渐变焦定配眼镜)

GB/T 17626.30-2023 Chinese PDF (GB/T17626.30-2023) GB/T 17643-2025 GB/T 45521-2025_Chinese: Smart community infrastructuresGB T 17626. 30 2023_Chinese: Electromagnetic compatibility Testing and measurement techniques Part 30: Power quality measurement methods (Chinese: 30) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 17626. 30 2023