Chigadziko chesimbi chingashandiswa here kunyungudutsa mhangura muchoto chinonyunguditsa?

You can choose graphite crucible for melting copper in kudonhedzwa kunyorera vira, or you can buy induction furnace ramming material yourself, and directly ram the furnace wall lining on the furnace wall to directly smelt copper. It is definitely not possible to use an iron crucible.