GB/T 23718.5-2024 Chinese PDF (GB /T23718.5-2024) GB/T 18216.11-2024 English versions: GB/T 15683-2025

English versions: GB/T 15683-2025

English versions: GB/T 17145-2024

31-2025_Chinese: Plugs and socket-outlets for household and similar purposes - Part 31: Particular requirements for socket-outlets incorporating USB power supply (Chinese: 家用和类似用途插头插座 第31部分：装有USB电源的插座的特殊要求)

English versions: GB/T 31036-2025

GB/T 23718.5-2024 Chinese PDF (GB /T23718.5-2024) GB/T 18216.11-2024 English versions: GB/T 15683-2025GB T 23718. 5 2024_Chinese: Condition monitoring and diagnostics of machines Requirements for qualification and assessment of personnel Part 5: Lubricant laboratory technician analyst (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 23718. 5 2024