Marori ekufambisa akakosha kuindasitiri yemigodhi uye seimwe yemotokari dzine basa guru revashandi pamwe nevamwe vashandi. Vatyairi vanogara vachitambura nekuvhunduka uye kudedera panguva yekurodha nekutakura. Arex yakaedza kurovera kwedombo paplate yesimbi ndokuwana peak ye108 decibels uye tobva tashandisa manganese steel wire mesh se skeleton mukati me 6” raber liner izvo zvinogona kuwedzera kusimba kwayo uye peak result inoratidza 60 decibels chete pakupedzisira. Inonyanya kunaka pane steel liners kana kurovera nekukuvara zvikaitika panguva yekurodha dombo pamubhedha.