ES-77 nangai reef na wucin gadi al'adar dutse veneer waje da ciki bango dutse haske nauyi dutse ledgestone

(1) Hasken rubutu. Ƙayyadaddun nauyin nauyi shine 1 / 3-1 / 4 na dutse na halitta, ba tare da ƙarin tallafin tushe na bango ba.
(2) Dorewa. Babu faɗuwa, juriya na lalata, juriya na yanayi, ƙarfin ƙarfi, juriya sanyi da ƙarancin rashin ƙarfi.
(3) Koren kare muhalli. Babu wari, shayar da sauti, rigakafin wuta, rufin zafi, mara guba, babu gurɓatacce, babu aikin rediyo.
(4) Kura da aikin tsaftacewa: bayan aikin wakili mai hana ruwa, ba shi da sauƙi don tsayawa ga ƙura, iska da ruwan sama za a iya wanke ta da kanta a matsayin sabon, ba tare da kulawa ba.
(5) Shigarwa mai sauƙi, ajiyar kuɗi. Babu buƙatar rivet shi a bango, liƙa kai tsaye; Kudin shigarwa shine kawai 1/3 na na dutse na halitta.
(6) Ƙarin zaɓuɓɓuka. Salo da launi sun bambanta, kuma haɗuwa da haɗuwa suna sa bangon ya zama tasiri mai girma uku