GB/T 39075.202-2023 Chinese PDF (GB/T39075.202-2023) GB 175-2023 GB/T 45183-2025_Chinese: Plastics - Instrumental

GB/T 45183-2025_Chinese: Plastics - Instrumental determination of radiant exposure in weathering tests - General guidance and basic test method (Chinese: 塑料 气候老化试验中辐照量的仪器测定 总则和基本测试方法)

GB/T 28545-2023_Chinese: Directives for rehabilitation and performance improvement for hydraulic turbines

GB/T 29456-2025_Chinese: Energy management systems - Guidance for the implementation

English versions: GB/T 41869

6-2023_Chinese: Building automation and control systems - Part 6: Data communication protocol conformance testing (Chinese: 建筑自动化和控制系统 第6部分：数据通信协议一致性测试)

GB/T 39075.202-2023 Chinese PDF (GB/T39075.202-2023) GB 175-2023 GB/T 45183-2025_Chinese: Plastics - InstrumentalGB T 39075. 202 2023_Chinese: Organic light emitting diode(OLED)light sources for general lighting Safety Part 2 2: Particular requirements Integrated OLED modules (Chinese: OLED 2 2 OLED) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 39075. 202 2023