GB/T 23144-2023 Chinese PDF (GB/T23144-2023) GB/T 18488-2024 2-2024_Chinese: Mechanical vibration and shock

2-2024_Chinese: Mechanical vibration and shock - Characterization of the dynamic mechanical properties of visco-elastic materials - Part 2:REsonance method (Chinese: 机械振动与冲击 黏弹性材料动态力学性能的表征 第2部分：共振法)

English versions: GB/T 26717-2024

GB/T 45208-2025_Chinese: Determination of paprika red in feeds - High performance liquid chromatography (Chinese: 饲料中辣椒红的测定 高效液相色谱法)

2-2024_Chinese: Railway applications - Suburban railway and urban guided transport management and command/control systems - Part 2: Functional requirements specification (Chinese: 轨道交通 市域铁路和城轨交通运输管理和指令/控制系统 第2部分：功能需求规范)

English versions: GB 12557-2024

GB/T 23144-2023 Chinese PDF (GB/T23144-2023) GB/T 18488-2024 2-2024_Chinese: Mechanical vibration and shockGB T 23144 2023_Chinese: Paper and board Determination of bending stiffness General principles for two point, three point and four point methods (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 23144 2023