DIN EN IEC 60153-4:2023-12 空心金属波导第4部分:圆形波导的相关规范(IEC 60153-4:2022);德文版 EN IEC 60153-4:2022
Hollow metallic waveguides - Part 4: Relevant specifications for circular waveguides (IEC 60153-4:2022); German version EN IEC 60153-4:2022 / Note: DIN EN 60153-4 (2018-08) remains valid alongside this standard until 2025-07-14.