Tikugashirei kumhando yedu inonakidza yemabatiro egonhi akagadzirwa kubva kumhando yepamusoro zinc alloy material.Aya magonhi emusuwo haasi kungoshanda chete asiwo anoburitsa mweya weumbozha uye runako, zvichiita kuti ive yekuwedzera yakakwana kune chero mukati.