Sika umugqa wobude ngezinto eziningi ezinekhwalithi enhle, umphumela wokusika onembile. Lo mugqa wokukhiqiza ungakhiqiza amapuleti avuliwe angama-galvanized, ashisayo-ashisayo, kanye nensimbi engagqwali anogqinsi luka-0.3mm-3mm nobubanzi obuyi-1500, ubude bepuleti obufushane bube ngu-500mm. Ubude bebhande lokuthutha elide kunawo wonke bungenziwa ngendlela oyifisayo.