Heating furnace convection device with multiple heating effects

The utility model discloses a heating furnace convection device with multiple heating effects. A convection tube assembly comprises an upper layer convection tube, a central tube and a lower layer convection tube, the upper-layer convection tube comprises an air inlet section and a spiral section, a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LIU HUAJUAN, HUANG LIANGDONG, LI WEIYUAN, HU YU
Format: Patent
Sprache:chi ; eng
Schlagworte:
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