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GB/T 21551.4-2024 Chinese PDF (GB /T21551.4-2024) GB/T 10816-2024 English versions: GB/T 21638-2025

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English versions: GB/T 21638-2025

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

4-2025_Chinese: Information technology - Abstract Syntax Notation One(ASN

GB/T 20130-2025_Chinese: Self-shielding electron beam facility for radiation processing (Chinese: 自屏蔽电子束辐射加工装置)

GB/T 21551.4-2024 Chinese PDF (GB /T21551.4-2024) GB/T 10816-2024 English versions: GB/T 21638-2025GB 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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