Kaviri-madziro corrugated pombi: imhando nyowani yepombi ine annular ekunze madziro uye yakatsetseka yemukati madziro.Inonyanya kushandiswa pakukura kwemvura, kugovera mvura, dhizaini, kuyerera kwesuweji, kupera simba, mhepo yepasi pevhu, kufefetedza kwemugodhi, kudiridza kweminda uye zvichingodaro nekumanikidza kwekushanda pasi pe0.6MPa.Ruvara rwemukati rwemadziro emadziro maviri-mavhuvhu anowanzo bhuruu uye dema, uye mamwe mabhureki achashandisa yero.