A.冷壓焊 B.螺柱焊 C.電阻定位焊 D.電阻對焊
A.20%~28% B.10%~20% C.30%~40% D.40%~50%
A.0.1~0.3 B.0.3~0.5 C.0.5~0.7 D.0.7~0.9