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GB/T 44959
maintenance and improvement of a GB/T 23331 energy management system (Chinese: 能源管理体系 实施、保持和改进GB/T 23331能源管理体系指南)
English versions: GB/T 45457
English versions: GB/T 20936
Note/Careful: Text of PDF is in Chinese (not English)
GB/T 3939.2-2023 Chinese PDF (GB/T3939.2-2023) GB/T 20972.3-2025 GB/T 44959GB T 3939. 2 2023_Chinese: Nomenclature and signs of main fishing gear material Part 2: Netting (Chinese: 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 3939. 2 2023
