Chimneys - Accessories - Part 3: Draught regulators, standstill opening devices and combined secondary air devices - Requirements and test methods; German and English version EN 16475-3:2016/prA1:2017
Chimneys - Accessories - Part 3: Draught regulators, standstill opening devices and combined secondary air devices - Requirements and test methods; German version EN 16475-3:2016+A1:2018— 50 стр.