GB/T 20042.5-2024 Chinese PDF (GB /T20042.5-2024) GB/T 17145-2024 33-2024_Chinese: Specifications for optical fibre

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)

English versions: GB/T 12417

3-2024_Chinese: Low-voltage electrical installations - Part 5-54: Selection and erection of electrical equipment - Earthing arrangements and protective conductors (Chinese: 低压电气装置 第5-54部分：电气设备的选择和安装 接地配置和保护导体)

English versions: GB 45184-2024

1-dichloroethylene and 1

GB/T 20042.5-2024 Chinese PDF (GB /T20042.5-2024) GB/T 17145-2024 33-2024_Chinese: Specifications for optical fibreGB T 20042. 5 2024_Chinese: Proton exchange membrane fuel cell Part 5: Test method for membrane electrode assembly (Chinese: 5) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20042. 5 2024