77.willo
2017-08-22 17:49:04
- #1
Where am I being difficult?
The air exchange rates are specified in DIN 1946-6. Now you explain to me which standard prohibits trickle vents and decentralized ventilation.
The use of punctuation marks is specified in DIN 5008.
The air exchange rates are specified in DIN 1946-6. Now you explain to me which standard prohibits trickle vents and decentralized ventilation.
The use of punctuation marks is specified in DIN 5008.