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GB/T 18867-2025_Chinese: Electronic gas - Sulphur hexaflouride (Chinese: 电子气体 六氟化硫)
1 specifications (Chinese: 信息技术 抽象语法记法一（ASN
GB/T 20424-2025_Chinese: The specification for limit on harmful element content of the heavy nonferrous metal concentrates products (Chinese: 重有色金属精矿产品中有害元素的限量规范)
English versions: GB/T 22322
GB/T 21638-2025_Chinese: Microbeam analysis - Guidelines for electron beam microanalysis of defects in steel materials (Chinese: 微束分析 钢铁材料缺陷电子束显微分析方法通则)
GB/T 21551.4-2024 Chinese PDF (GB /T21551.4-2024) GB/T 23595.7-2025 GB/T 18867-2025_Chinese: Electronic gas -GB 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
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