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English versions: GB/T 20991-2024
English versions: GB/T 27534
English versions: GB/T 25820-2025
300-2025_Chinese: National food safety standard - Determination of L-carnitine in the foods (Chinese: 食品安全国家标准 食品中左旋肉碱的测定)
English versions: GB/T 21121-2024
GB/T 24498-2025 Chinese PDF (GB /T24498-2025) GB 10770-2025 English versions: GB/T 20991-2024GB T 24498 2025_Chinese: Gaskets for doors, windows and curtain walls of buildings (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 24498 2025
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