Ny varavarana afo dia varavarana iray afaka mahafeno ny fepetra takian’ny fahamarinan’ny afo, ny fahamendrehana ary ny insulation mafana ao anatin’ny fe-potoana iray. Misy karazany maro tokoa ny varavaran’ny afo, toy ny varavaran’ny afo hazo, ny varavaran’ny afo vy, ny varavaran’ny afo vy, ary ny varavarana afo hafa. Tongasoa eto aminay.

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