Ayyukan kunkuntar ƙofar mu yana da kyau don shigar da iska, shigar ruwa, nauyin iska mai tsari, ƙirar girgizar ƙasa da juriya na tasirin guguwa.Ƙofar mu ta kunkuntar aluminum ita ce kawai kofa ta farko tare da mafi ƙarancin bayanin martaba wanda ke da ƙimar AAMA don amfani na waje.Ƙofar kunkuntar tana da daidaitawa mara iyaka, ainihin aljihu guda ɗaya zuwa saitunan faifai masu yawa, in-line ko aikace-aikacen digiri 90.Waɗannan kunkuntar kofa na waje suna ba da mafi kyawun inganci a farashi mai araha.

Haske mai ƙarfi amma mai ƙarfi, ƙunƙuntaccen kofa na aluminium ana iya saita shi cikin haɗuwa iri-iri.Ƙunƙarar firam ɗin yana sanya hankali kan gilashin kuma daga baya, ra'ayin da yake bayarwa.Ana yin ganuwar gilashi da yawa tare da firam ɗin aluminium don sauƙaƙe rayuwar cikin gida/ waje.kunkuntar kofofin suna samuwa a cikin anodized ko gasa-kan ƙare don dogon launi.An rufe, sasanninta da aka haɗa da injiniyoyi suna zama murabba'i da gaskiya tsawon shekaru na amfani.