NA 041
DIN Standards Committee Heating and Ventilation Technology and their Safety
Standards
[Withdrawn]
DIN 24147-6
DIN 24147-6
Ventilation equipment; shaped pieces; distribution (T-) pieces 45° and 90°
Title (German)
Lufttechnische Anlagen; Formstücke; Abzweigstücke 45° und 90°