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4-tetramethyl-1
303-2025_Chinese: National food safety standard - Determination of Yeast β -glucan in Food (Chinese: 食品安全国家标准 食品中酵母β-葡聚糖的测定)
GB/T 16702
5-2024_Chinese: Proton exchange membrane fuel cell - Part 5: Test method for membrane electrode assembly (Chinese: 质子交换膜燃料电池 第5部分：膜电极测试方法)
English versions: GB 39800
GB/T 15470.3-2025 Chinese PDF (GB /T15470.3-2025) GB 45669.2-2025 4-tetramethyl-1GB T 15470. 3 2025_Chinese: Household electric direct acting room heaters Methods for measuring performance Part 3: Additional provisions for the measurement of the radiation efficiency (Chinese: 3) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 15470. 3 2025
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