GB 31335-2024 Chinese PDF GB/T 44914-2024 English versions: GB 44016-2024

English versions: GB 44016-2024

English versions: GB/T 45245-2025

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)

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 45168-2024_Chinese: Determination of chromium picolinate in health foods (Chinese: 保健食品中吡啶甲酸铬的测定)

GB 31335-2024 Chinese PDF GB/T 44914-2024 English versions: GB 44016-2024GB 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