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71-2024_Chinese: Communication networks and systems for power utility automation - Part 7-1: Basic communication structure - Principles and models (Chinese: 电力自动化通信网络和系统 第7-1部分：基本通信结构 原理和模型)
GB/T 45422-2025_Chinese: Chemicals - Surface water-sediment Misgurnus anguillicaudatus toxicity test (Chinese: 化学品 地表水系统-沉积物中泥鳅毒性试验)
English versions: GB 12664-2024
GB/T 3477-2023_Chinese: Marine weathertight single-leaf steel doors (Chinese: 船用风雨密单扇钢质门)
GB/T 29043-2023_Chinese: Test method for thermal insulating performance of curtain walls (Chinese: 建筑幕墙保温性能检测方法)
GB/T 7247.2-2024 Chinese PDF (GB/T7247.2-2024) GB/T 45087-2024 71-2024_Chinese: Communication networks and systemsGB T 7247. 2 2024_Chinese: Safety of laser products Part 2: Safety of optical fibre communication systems (OFCSs) (Chinese: 2OFCS) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 7247. 2 2024
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