Rehefa mamokatra sy miforona ny varavaran’ny afo, dia hisy fiantraikany tsara amin’ny fisorohana ny afo sy ny insulation setroka, ary mahafeno ny fepetra takian’ny fitoniana, ny fahamendrehana ary ny hafanana. Ny famokarana varavarana afo manara-penitra dia vita amin’ny lamba vita amin’ny vy vita amin’ny vy vita amin’ny galvanized avo lenta, izay novokarina tamin’ny dingana manaraka.

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