Wocingo kwalenza yenziwe ngentsimbi kwalenza. Kwakhona kungenziwa ngetambo yocingo kwaye i-zinc yokugubungela i-galvanized nayo ingayifaka i-PVC. Isefu enemingxunya kwalenza iqhele ukusetyenziswa njenge ukuhlolwa kwezinambuzane kunye neeesefu, amashishini kunye nolwakhiwo.