Hiki ke hoʻokaʻawale ʻia i loko o ka uila wiliwili wiliwili uea mesh, wela hohonu wiliwili wiliwili.
Ma waho aʻe, e like me nā ʻano hana ʻokoʻa, aia nā galvanized ma mua o ka wili ʻana i ka uea welded mesh a me ka galvanized ma hope o ka wili ʻana i ka wili.