GB/T 21649.1-2024 Chinese PDF (GB/T21649.1-2024) GB 10408-2025 3-2023_Chinese: Aramid pressboard for electrical

3-2023_Chinese: Aramid pressboard for electrical purposes - Part 3: Specifications for individual materials (Chinese: 电气用聚芳酰胺纤维纸板 第3部分：单项材料规范)

English versions: GB/T 20871

English versions: GB/T 20840

GB/T 2035-2024_Chinese: Plastics - Vocabulary (Chinese: 塑料 术语)

1-2025_Chinese: Configuration file exchange for industrial control system HMI - Part 1: General information (Chinese: 工业控制系统人机接口组态文件交互 第1部分：通用信息)

GB/T 21649.1-2024 Chinese PDF (GB/T21649.1-2024) GB 10408-2025 3-2023_Chinese: Aramid pressboard for electricalGB T 21649. 1 2024_Chinese: Particle size analysis Image analysis methods Part 1: Static image analysis methods (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 21649. 1 2024