GB/T 45147-2024 English PDF (GB/T45147-2024) GB/T 18216.12-2025 English versions: GB 20943-2025

English versions: GB 20943-2025

2-2025_Chinese: Road vehicles - Connectors for the electrical connection of towing and towed vehicles (13-pole) - Part 2: 13-pole connectors for vehicles with 12 V nominal supply voltage intended to cross water fords (Chinese: 道路车辆 牵引车和挂车之间的电连接器（13 芯）第 2 部分：12V13 芯涉水型)

1-2024_Chinese: Smart city - City digital twin - Part 1: Technical reference architecture (Chinese: 智慧城市 城市数字孪生 第1部分：技术参考架构)

GB/T 16981-2025_Chinese: Information technology - Office equipment - Copying machines and multi-function devices - Information to be included in specification sheets and related test methods (Chinese: 信息技术 办公设备 复印机和多功能设备 规格表中包含的基本内容和相关测试方法)

English versions: GB/T 35319-2025

GB/T 45147-2024 English PDF (GB/T45147-2024) GB/T 18216.12-2025 English versions: GB 20943-2025GB T 45147 2024_Chinese: Road vehicles Test of vehicle air braking systems with a permissible mass of over 3. 5t Acquisition and use of reference values using a roller brake tester (Chinese: 3. 5t ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45147 2024