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GB/T 22581-2024_Chinese: Fundamental technical requirements for Francis pump-turbines (Chinese: 混流式水泵水轮机基本技术条件)
GB/T 4543-2023_Chinese: Pyrotechnic distress signals (Chinese: 救生烟火信号)
guardrail and fence system (Chinese: 塑木复合材料铺板、护栏和围栏体系性能)
material and marking of mechanical seals (Chinese: 机械密封的型式、主要尺寸、材料和识别标志)
English versions: GB/T 45307-2025
GB/T 25774.1-2023 Chinese PDF (GB/T25774.1-2023) GB/T 45366-2025 GB/T 22581-2024_Chinese: Fundamental technical requirementsGB T 25774. 1 2023_Chinese: Test methods for welding consumables Part 1: Preparation of deposited metal test pieces and specimens for mechanical properties in steel, nickel and nickel alloys (Chinese: 1 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 25774. 1 2023
