GB/T 18281.1-2024 Chinese PDF (GB /T18281.1-2024) GB 5009.42-2025 GB/T 20725-2025_Chinese: Microbeam analysis -

GB/T 20725-2025_Chinese: Microbeam analysis - Electron probe microanalysis - Guidelines for qualitative point analysis by wavelength dispersive X-ray spectrometry (Chinese: 微束分析 电子探针显微分析 波谱法定性点分析导则)

English versions: GB/T 23454-2025

socket-outlets and couplers for industrial purposes - Part 6: Direct current(DC) plugs

1-2025_Chinese: Information technology - ASN

1-2024_Chinese: Non-destructive testing - Penetrant testing - Part 1: General principles (Chinese: 无损检测 渗透检测 第1部分：总则)

GB/T 18281.1-2024 Chinese PDF (GB /T18281.1-2024) GB 5009.42-2025 GB/T 20725-2025_Chinese: Microbeam analysis -GB T 18281. 1 2024_Chinese: Sterilization of health care products Biological indicators Part 1: General requirements (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 18281. 1 2024