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English versions: GB/T 20931
137-2025_Chinese: National food safety standard - Determination of antimony in foods (Chinese: 食品安全国家标准 食品中锑的测定)
GB 19081-2025_Chinese: Safety specification for dust explosion prevention in feed processing system (Chinese: 饲料加工系统粉尘防爆安全规范)
English versions: GB 17799
English versions: GB/T 45398-2025
GB/T 15971-2023 Chinese PDF (GB/T15971-2023) GB/T 44912-2024 English versions: GB/T 20931GB T 15971 2023_Chinese: Specification for tour guide service (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 15971 2023
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