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Корзина
DIN
DIN 4759-1:1986-04
Действует
Process heat installations for more than one kind of energy; one boiler for solid fuel and one for oil or gas and only one chimney; safety requirements and tests — 10 стр.
DIN EN 298:2012-11
Действует
Automatic burner control systems for burners and appliances burning gaseous or liquid fuels; German version EN 298:2012 — 58 стр.