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English versions: GB 45671-2025
English versions: GB 5009
English versions: GB/T 17670-2025
English versions: GB 19302-2025
GB 20827-2025_Chinese: Criteria of physical examination for commercial divers (Chinese: 职业潜水员体格检查要求)
GB 31604.62-2025 English PDF GB/T 13522-2024 English versions: GB 45671-2025GB 31604. 62 2025_Chinese: National food safety standard Food contact materials and products Determination of migration and release of N nitrosamines (Chinese: N ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 31604. 62 2025
