GB/T 21551.4-2024 Chinese PDF (GB /T21551.4-2024) GB/T 10816-2024 GB/T 17365-2025_Chinese: Microbeam analysis -

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)

English versions: GB/T 21638-2025

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)

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

33-2024_Chinese: Specifications for optical fibre test methods - Part 33: Measurement methods and test procedures for mechanical characteristics - Stress corrosion susceptibility (Chinese: 光纤试验方法规范 第33部分：机械性能的测量方法和试验程序 应力腐蚀敏感性参数)

GB/T 21551.4-2024 Chinese PDF (GB /T21551.4-2024) GB/T 10816-2024 GB/T 17365-2025_Chinese: Microbeam analysis -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