GB 31335-2024 Chinese PDF GB/T 44914-2024 2-2025_Chinese: Safety requirements of battery

2-2025_Chinese: Safety requirements of battery swap for electric vehicles - Part 2: Commercial vehicle (Chinese: 电动汽车换电安全要求 第2部分：商用车辆)

power supply units and combinations thereof - Part 5: Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers for general applications (Chinese: 变压器、电抗器、电源装置及其组合的安全 第5部分：一般用途隔离变压器和内装隔离变压器的电源装置的特殊要求和试验)

GB/T 17925-2024_Chinese: Practice for X-ray digital radioscopic examination of cylinder weld (Chinese: 气瓶对接焊缝X射线数字成像检测)

English versions: GB/T 45245-2025

GB 31335-2024 Chinese PDF GB/T 44914-2024 2-2025_Chinese: Safety requirements of batteryGB 31335 2024_Chinese: Norm of the energy consumption per unit production of iron ore mining and dressing (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 31335 2024