Tsarin dasawa na rauni yana buƙatar fiye da farashin gasa akan farantin kulle. Suna buƙatar amincin dasa shuki a cikin kewayon faɗuwar fashe-fashe, daidaiton kayan aiki wanda a zahiri yake riƙewa a cikin OR, cikar samfuri a cikin faranti, ƙusoshi, da gyare-gyare na waje, ƙarfin masana'anta na gaske.