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DIN EN 621:2002-01

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 (includes Amendment A1:2001); German version EN 621:1998 + A1:2001 — 111 стр.
ICS
97.100.20 Gas heaters / Газовые нагреватели