Ƙofar wuta ta gilashin bakin karfe irin ta wuta ce, wadda kofa ce ta wuta da aka yi da kayan haɗaka. Gaba dayan jikin kofar wuta na gilashin bakin karfe an yi shi da inganci kuma mai karfin bakin karfe, tare da firam mai galvanized, jiyya na hana lalata, wuta da hana wuta.

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