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English versions: GB/T 45309-2025
4-2025_Chinese: Acoustics - Laboratory measurement of sound insulation of building elements - Part 4: Measurement procedures and requirements (Chinese: 声学 建筑构件隔声的实验室测量 第4部分：测量程序和要求)
English versions: GBZ17626
English versions: GB/T 13357-2024
English versions: GB/T 44024-2025
GB/T 32151.42-2024 Chinese PDF (GB/T32151.42-2024) GB 5842-2023 English versions: GB/T 45309-2025GB T 32151. 42 2024_Chinese: Requirements of the greenhouse gas emissions accounting and reporting Part 42: Copper smelting enterprise (Chinese: 42) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 32151. 42 2024
