DIN EN ISO 12759-5:2019 Fans - Efficiency classification for fans - Part 5: Jet fans (ISO/DIS 12759-5:2019); German and English version prEN ISO 12759-5:2019
2019DIN EN ISO 12759-5:2019 Fans - Efficiency classification for fans - Part 5: Jet fans (ISO/DIS 12759-5:2019); German and English version prEN ISO 12759-5:2019