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40-2024_Chinese: Specifications for optical fibre test methods - Part 40: Measurement methods and test procedures for transmission characteristics - Attenuation (Chinese: 光纤试验方法规范 第40部分：传输特性的测量方法和试验程序 衰减)
English versions: GB/T 20032-2024
English versions: GB/T 22454-2025
2-2024_Chinese: Non-destructive testing - Penetrant testing - Part 2: Testing of penetrang materials (Chinese: 无损检测 渗透检测 第2部分：渗透材料的检验)
GB/T 29045-2025_Chinese: Prefabricated thin hot water radiant heating board (Chinese: 预制轻薄型热水辐射供暖板)
GB/T 33492-2024 Chinese PDF (GB /T33492-2024) GB/T 21196.2-2025 40-2024_Chinese: Specifications for optical fibreGB T 33492 2024_Chinese: Management specification of second hand goods exchange market (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 33492 2024
