GB/T 9253-2022 Chinese PDF (GB/T9253-2022) GB/T 17630-2024 GB/T 28634-2025_Chinese: Microbeam analysis -

GB/T 28634-2025_Chinese: Microbeam analysis - Electron probe microanalysis - Quantitative point analysis for bulk specimens using wavelength dispersive X-ray spectroscopy (Chinese: 微束分析 电子探针显微分析 块状试样波谱法定量点分析)

8-2024_Chinese: Technical requirements and test methods for sports field - Part 8: Ice rink (Chinese: 体育场地使用要求及检验方法 第8部分：运动冰场)

English versions: GB/T 4797

GB/T 30547-2023_Chinese: Filter resistor for high voltage direct current (HVDC) transmission system (Chinese: 高压直流输电系统滤波器用电阻器)

English versions: GB/T 1094

GB/T 9253-2022 Chinese PDF (GB/T9253-2022) GB/T 17630-2024 GB/T 28634-2025_Chinese: Microbeam analysis -GB T 9253 2022_Chinese: Petroleum and natural gas industries Threading, gauging and thread inspection of casing, tubing, and line pipe threads (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 9253 2022