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English versions: GB/T 45470-2025
1-2025_Chinese: Quality requirements for organic acids - Part 1: Citric acid (Chinese: 有机酸质量要求 第1部分：柠檬酸)
GB/T 4354-2025_Chinese: Hot-rolled quality carbon steel wire rods (Chinese: 优质碳素钢热轧盘条)
4-2025_Chinese: Reference conditions and procedures for testing industrial and process measurement transmitters - Part 4: Specific procedures for level transmitters (Chinese: 工业过程测量变送器试验的参比条件和程序 第4部分：物位变送器的特定程序)
3-2023_Chinese: Incandescent lamps - Safety specifications - Part 3: Tungsten-halogen lamps (non-vehicle) (Chinese: 白炽灯 安全规范 第3部分：卤钨灯（非机动车辆用）)
GB/T 4137-2024 Chinese PDF (GB/T4137-2024) GB/T 45177-2024 English versions: GB/T 45470-2025GB T 4137 2024_Chinese: Rare earth ferrosilicon alloy (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 4137 2024
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