GB/T 25105.3-2025 Chinese PDF (GB /T25105.3-2025) GB/T 21478-2024 1-2025_Chinese: Assembled spectacles - Part

1-2025_Chinese: Assembled spectacles - Part 1: Single-vision and multifocal prescription assembled spectacles (Chinese: 配装眼镜 第1部分：单焦和多焦定配眼镜)

GB/T 18760-2025_Chinese: Methods and requirements for after-sales service of consumer products (Chinese: 消费品售后服务方法与要求)

English versions: GB/T 20243

2-2024_Chinese: Public information guidance systems - Setting principles and requirements - Part 2: Airport (Chinese: 公共信息导向系统 设置原则与要求 第2部分：民用机场)

setting time and soundness of the Portland cement (Chinese: 水泥标准稠度用水量、凝结时间与安定性检验方法)

GB/T 25105.3-2025 Chinese PDF (GB /T25105.3-2025) GB/T 21478-2024 1-2025_Chinese: Assembled spectacles - PartGB T 25105. 3 2025_Chinese: Industrial communication networks Fieldbus specifications Type 10: PROFINET IO specifications Part 3: PROFINET IO commuication profile (Chinese: 10: PROFINET IO 3PROFINET IO) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 25105. 3 2025