Four giant iron trusses weighing dozens of tons were pulled up by the girl and her neighbors 

The homeowner had to call the whole village to help pull up four giant iron trusses weighing dozens of tons #genius girl #Super durable corrugated iron roof #The biggest house in the world #mechanical girl #mechanic girl #Super big corrugated iron roof #Welding and cutting instructions #mechanical engineering #dailywork #loandailywork