GB/T 39075.1-2023 Chinese PDF (GB/T39075.1-2023) GB/T 45534-2025 English versions: GB/T 17699

English versions: GB/T 17699

GB 23394-2024_Chinese: Respiratory protection - Positive pressure self-contained closed-circuit compressed oxygen breathing apparatus (Chinese: 呼吸防护 正压式自给闭路压缩氧气呼吸器)

3-2024_Chinese: Implants for surgery - Metallic materials - Part 3: Wrought titanium 6-aluminum 4-vanadium alloy (Chinese: 外科植入物 金属材料 第3部分：锻造钛-6铝-4钒合金)

English versions: GB/T 45612-2025

GB/T 29711-2023_Chinese: Non-destructive testing of welds - Ultrasonic testing - Characterization of discontinuities in welds (Chinese: 焊缝无损检测 超声检测 焊缝内部不连续的特征)

GB/T 39075.1-2023 Chinese PDF (GB/T39075.1-2023) GB/T 45534-2025 English versions: GB/T 17699GB T 39075. 1 2023_Chinese: Organic light emitting diode(OLED)light sources for general lighting Safety Part 1: General requirements and tests (Chinese: OLED 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 39075. 1 2023