Nawa kuka sani game da aikace-aikacen kumfa aluminium a cikin masana'antar kera motoci?
Karfe kumfa yana da jerin kyawawan kaddarorin: babban porosity, babban yanki na musamman, babban takamaiman ƙarfi, ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙarfi, ɗaukar kuzari, damping mai kyau da ɗaukar girgiza, juriya mai lalata, babban zazzabi sake ...
duba daki-daki