GB/T 18639-2023 Chinese PDF (GB/T18639-2023) GB/T 45258-2025 5-2024_Chinese: Safety requirements for electrical

5-2024_Chinese: Safety requirements for electrical equipment for measurement

GB 30367-2025_Chinese: Dentistry - Ceramic materials (Chinese: 牙科学 陶瓷材料)

GB 44497-2024_Chinese: Intelligent and connected vehicle - Data storage system for automated driving (Chinese: 智能网联汽车 自动驾驶数据记录系统)

13-2025_Chinese: Electronic railway equipment - Train communication network (TCN) - Part 4-1: The test method of train communication network based on Wire Train Bus(WTB) (Chinese: 轨道交通电子设备 列车通信网络（TCN) 第4-1部分：基于绞线式列车总线（WTB）的列车通信网络试验方法)

1-2024_Chinese: Mechanical vibration - Measurement and evaluation of machine vibration - Part 1: General guidelines (Chinese: 机械振动 机器振动的测量和评价 第1部分：总则)

GB/T 18639-2023 Chinese PDF (GB/T18639-2023) GB/T 45258-2025 5-2024_Chinese: Safety requirements for electricalGB T 18639 2023_Chinese: Diagnostic techniques for rabies (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 18639 2023