Crimped Al-terminal. Al-terminals (알루미늄 단자) :16 mm² to 630 mm² aluminium conductors are made of solid 99.7% aluminium. For class2 stranded / class1 solid AK Type(Al-terminal) AS Type(Al-connector)         Crimped Al-Cu-terminal. 'ELPRESS V250으로 알루미늄 압착하는 모습' AlCu-terminals (알루미늄+구리 단자) : 알루미늄과 구리 단자를 결합한 제품 AKK Type(AlCu-terminal) AKS Type(AlCu-connector) AKP Type(AlCu-pin terminal)