Iyo inowanzo kuve inoumbwa neyakagadzirwa nechubhu pombi, mambure sleeve uye kubatana. Iyo yemukati chubhu itete yakatetepa yakakomberedzwa isina waya stell corrugated pombi ine yekumonera kana yakaumbwa chimiro, uye yekunze dura repombi yakaora inogadzirwa nesimbi isina waya waya tambo yesimbi. Iwo majoini uye mapendekete pamagumo ese epombi ar anowirirana neanokodzera uye mafirange epombi mutengi.