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GB/T 6150.20-2025 Chinese PDF (GB /T6150.20-2025) GB/T 21099.3-2024 English versions: GB/T 45231-2025
GB/T 6150.20-2025 Chinese PDF (GB /T6150.20-2025) GB/T 21099.3-2024 English versions: GB/T 45231-2025
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Description
English versions: GB/T 45231-2025
GB/T 43590
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 25045-2025_Chinese: Basalt fiber roving (Chinese: 玄武岩纤维无捻粗纱)
English versions: GB/T 33744-2025
GB/T 6150.20-2025 Chinese PDF (GB /T6150.20-2025) GB/T 21099.3-2024 English versions: GB/T 45231-2025GB T 6150. 20 2025_Chinese: Methods for chemical analysis of tungsten concentrates Part 20: Determination of mercury content Solid sampling and direct mercury analysis method (Chinese: 20 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 6150. 20 2025
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