GB/T 45598-2025 Chinese PDF (GB /T45598-2025) GB/T 45119-2024 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 45247-2025

English versions: GB/T 45269-2025

GB/T 45636-2025_Chinese: Technical specifications for the prevention and control of contact-transmitted infectious diseases at entry-exit points (Chinese: 进境出境经接触传播传染病防控技术规范)

GB/T 44990-2024_Chinese: Test method for interface bonding strength of coating by laser cladding repairing (Chinese: 激光熔覆修复层界面结合强度试验方法)

GB/T 45598-2025 Chinese PDF (GB /T45598-2025) GB/T 45119-2024 2-2024_Chinese: Acoustics - Calibration ofGB T 45598 2025_Chinese: Fine ceramics Test method of elastic modulus, shear modulus and Poisson's ratio for ceramic at high temperature Impulse excitation of vibration (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45598 2025