GB/T 24630.1-2024 Chinese PDF (GB/T24630.1-2024) GB/T 29912-2024 5-2023_Chinese: Plastics - Determination of

5-2023_Chinese: Plastics - Determination of resistance to environmental stress cracking (ESC) - Part 5: Constant tensile deformation method (Chinese: 塑料 耐环境应力开裂(ESC)的测定 第5部分:恒定拉伸变形法)

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)

3-2025_Chinese: Non-destructive testing - Ultrasonic testing block - Part 3: Calibration block for curved surface (Chinese: 无损检测 超声检测试块 第3部分：曲面检测标准试块)

GB/T 16262

GB/T 24630.1-2024 Chinese PDF (GB/T24630.1-2024) GB/T 29912-2024 5-2023_Chinese: Plastics - Determination ofGB T 24630. 1 2024_Chinese: Geometrical product specifications(GPS) Flatness Part 1: Vocabulary and parameters of flatness (Chinese: GPS 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 24630. 1 2024