GB/T 21551.4-2024 Chinese PDF (GB /T21551.4-2024) GB/T 10816-2024 2-2025_Chinese: National food safety standard

2-2025_Chinese: National food safety standard - Disinfectant (Chinese: 食品安全国家标准 消毒剂)

4-2025_Chinese: Uncut finished spectacle lenses - Part 4: Anti-reflective coatings test methods (Chinese: 眼镜镜片 第4部分：减反射膜试验方法)

GB/T 28185-2025_Chinese: Heat exchange unit for urban heating (Chinese: 城镇供热用换热机组)

GB/T 17365-2025_Chinese: Microbeam analysis - Method of preparation for specimens of metal and alloy in electron probe microanalysis (Chinese: 微束分析 金属与合金电子探针定量分析试样的制备方法)

GB/T 21551.4-2024 Chinese PDF (GB /T21551.4-2024) GB/T 10816-2024 2-2025_Chinese: National food safety standardGB T 21551. 4 2024_Chinese: Antimicrobial and cleaning function of household and similar electrical appliances Part 4: Particular requirements for refrigerator (Chinese: 4) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 21551. 4 2024