Mageji mabhuroko (anozivikanwawo semageji mabhuroko, Johansson geji, anotsvedza, kana maJo blocks) isystem yekugadzira hurefu chaihwo.Iyo yega geji block isimbi kana ceramic block yakave nemazvo pasi uye yakaroverwa kune chaiyo ukobvu.Mageji mabhuroko anouya mumaseti emabhuroko ane huwandu hwehurefu hwakajairika.Mukushandiswa, mabhururu akaturikidzana kuita hurefu hunodiwa (kana kureba).