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GB/T 45252-2025_Chinese: Securities trading exchange protocol (Chinese: 证券交易数据交换协议)
4-butanediol
GB/T 6148-2025_Chinese: Test method for temperature-resistance coefficient of precision resistance alloys (Chinese: 精密电阻合金电阻温度系数测试方法)
5-2024_Chinese: Semiconductor devices - Part 5-5: Optoelectronic devices - Photocouplers (Chinese: 半导体器件 第5-5部分：光电子器件 光电耦合器)
9-2024_Chinese: Aquatic feed - Part 9: Formula feed for largemouth bass (Chinese: 水产配合饲料 第9部分：大口黑鲈配合饲料)
GB/T 21837-2023 Chinese PDF (GB/T21837-2023) GB 4234.9-2023 GB/T 45252-2025_Chinese: Securities trading exchangeGB T 21837 2023_Chinese: Practice for electromagnetic examination of ferromagnetic steel wire rope (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 21837 2023
