GB/T 38055.1-2025 Chinese PDF (GB /T38055.1-2025) GB/T 20604-2025 2-2024_Chinese: Acoustics - Calibration of

2-2024_Chinese: Acoustics - Calibration of hydrophones - Part 2: Procedures for low frequency pressure calibration (Chinese: 声学 水听器校准 第2部分：低频声压场校准方法)

English versions: GB/T 22939

GB/T 31086-2025_Chinese: Requirements and evaluation indicators for cold chain service capabilities of logistics enterprises (Chinese: 物流企业冷链服务能力要求与评估指标)

8-2025_Chinese: Norm of water intake for industry - Part 8: Synthetic ammonia (Chinese: 工业用水定额 第8部分：合成氨)

English versions: GB/T 1632

GB/T 38055.1-2025 Chinese PDF (GB /T38055.1-2025) GB/T 20604-2025 2-2024_Chinese: Acoustics - Calibration ofGB T 38055. 1 2025_Chinese: Rough terrain trucks Safe use requirements Part 1: Variable reach trucks (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 38055. 1 2025