A.銅 B.鋁 C.銀 D.重金屬
A.0.5 B.1.0 C.1.5 D.3.0
A.133/200,2,800,6.4 B.133/200,4,533,6.4 C.133/200,4,800,6.4 D.133/200,4,800,4.2