Akarongedzwa simbi coils / mashitsi anonziwo mavara seyakavhara simbi coils / mashitsi, kazhinji anoitwa nekubika (roll coating) chipenga pane substrate kana bonding organic firimu uye wozobheka yekupedzisira coils / mashitsi. Iyo substrates ndeye galvanized iron coils (PPGI) kana galvalume simbi coils (PPGL), aluminium coils (PPAL).

Yakagadzirirwa simbi coils / mashitsi zvinhu zvitsva zvekuvaka zvinokura nekukurumidza mumakore achangopfuura pasi rese. Iyo inosangana nekushandiswa kwemakemikari, yekutanga kubatisa, yekupedzisa coating uye mamwe maitiro mune inoenderera kugadzira mutsara. Iyo yekubatira yakafanana, yakagadzika uye yakanaka, zviri nani kupfuura yekuspika yekushongedza yekutanga kana brashi pendi yezvikamu zvakaumbwa simbi.

Yakarongedzwa simbi coil / mashitsi ane yakashongedzwa yakanakisa, kuumbwa, uye yakanaka yekudzivisa kutu zvinhu. Iko kunamatira kunamatira kwakanaka uye hakuzochinjwe kwenguva refu. Nekuti simbi yakarongedzwa inogona kutsiva huni, inyanzvi yekuvaka, pamwe nekuchengetedza simba, kudzivirira kusvibiswa uye kunaka kwehupfumi.