Don biyan bukatun samar da ruwa na ruwa, hana tsatsa da sauran abubuwa masu cutarwa gurbata ruwan sama, bangon na ciki da aka yi amfani da shi a gindin ruwa.
Akwai nau'i guda iri iri iri guda biyu don ɗaukar nauyin turmi na ductile baƙin ƙarfe: spraying da centrugal rufin. A ciminti mai bushe da wannan hanyar tana da santsi, har ma, farfajiya mai laushi, ƙarfin bonding tare da bangon bututun, ba mai sauƙin faduwa ba, kuma digiri mai sauƙi.
Injin da aka yi amfani da shi shine jiha {{0} {{1}-}- 1}}- - { Ana amfani da wannan dabarar don haɓaka ƙarfin bututu da ƙara ɗaukar sa rai.
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