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GB/T 45470-2025_Chinese: Recycled carbon fiber for cement concrete (Chinese: 水泥混凝土用回收碳纤维)
GB/T 45611-2025_Chinese: Diamond - Testing and classification (Chinese: 钻石 鉴定与分类)
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 25320
31-2025_Chinese: National food safety standard - Food contact materials and products - Determination of residual and migration of vinyl chloride
YY 0271.2-2024 Chinese PDF GB/T 45305.4-2025 GB/T 45470-2025_Chinese: Recycled carbon fiberYY 0271. 2 2024_Chinese: Dentistry Water based cements Part 2: Resin modified cements (Chinese: 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: YY 0271. 2 2024
