GB/T 13930-2024 Chinese PDF (GB/T13930-2024) GB/T 45436-2025 English versions: GB/T 22452-2025

English versions: GB/T 22452-2025

English versions: GB/T 19048-2024

English versions: GB 19081-2025

GB/T 45468-2025_Chinese: Microbeam analysis - FIB-SEM imaging and analysis method for 3D micro-pore structure of rock sample (Chinese: 微束分析 岩石微孔隙聚焦离子束-扫描电镜三维成像分析方法)

GB/T 45229-2025_Chinese: Requirements for safety of theatre process (Chinese: 剧场工艺安全要求)

GB/T 13930-2024 Chinese PDF (GB/T13930-2024) GB/T 45436-2025 English versions: GB/T 22452-2025GB T 13930 2024_Chinese: Water ring vacuum pumps and compressors Method for measurement of volume flow of gas (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 13930 2024