GB/T 30553-2023 Chinese PDF (GB/T30553-2023) GB 20052-2024 English versions: GB/T 1232

English versions: GB/T 1232

GB/T 22723-2024_Chinese: Natural gas - Energy determination (Chinese: 天然气 能量的测定)

English versions: GB/T 534-2024

39-2023_Chinese: Electromagnetic compatibility - Testing and measurement techniques - Part 39: Radiated fields in close proximity immunity test (Chinese: 电磁兼容 试验和测量技术 第39部分：近距离辐射场抗扰度试验)

1）第1部分：基本记法规范)

GB/T 30553-2023 Chinese PDF (GB/T30553-2023) GB 20052-2024 English versions: GB/T 1232GB T 30553 2023_Chinese: High voltage direct current (HVDC) power transmission using voltage sourced converters (VSC) (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 30553 2023