... of corner connector profile cutting . 7.It uses the CNC technology,the man-machine interface intuitive practicalTechnical Parameter: Power ... you need the following basic machines1).CNC double head aluminum profile cutting saw,model:LJZ2-CNC-500*42000A (2).Lock hole copy ... 4).Automatic Corner connector automatic cutting saw,model:LJJZ-500 5).Single head Corner combining machine,model:LZJ-120CKindly ...