Ana amfani da injin ɗin Bimetallic extruded finned bututun yin na'ura don yin bututun da aka ƙera tare da kyakkyawan haɗin fin-to-tube yana samar da ingantaccen inganci da tsawon rai.Ko sabis mai wahala, yanayin zafi mai zafi, ko yanayi mai lalacewa, bututun fin da aka fitar shine mafi kyawun zaɓi don aikace-aikacen musayar zafi.