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DIN EN 621:2010-04

Отменен
Non-domestic gas-fired forced convection air heaters for space heating not exceeding a net heat input of 300 kW, without a fan to assist transportation of combustion air and/or combustion products; German version EN 621:2009 — 120 стр.
ICS
97.100.20 Gas heaters / Газовые нагреватели