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GB/T 5111-2024_Chinese: Acoustics - Measurement of noise emitted by rail bound vehicles (Chinese: 声学 轨道机车车辆发射噪声测量)
English versions: GB/T 27793-2024
English versions: GB/T 21413
English versions: GB 24406-2024
English versions: GB 17167-2025
GB/T 25774.2-2023 Chinese PDF (GB/T25774.2-2023) GB/T 7991.10-2024 GB/T 5111-2024_Chinese: Acoustics - MeasurementGB T 25774. 2 2023_Chinese: Test methods for welding consumables Part 2: Preparation of butt weld single run and two run technique test pieces and specimens for mechanical properties in steel (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 25774. 2 2023
