ສາ​ມາດ​ໃຊ້ crucible ເຫຼັກ​ສໍາ​ລັບ​ການ​ລະ​ລາຍ​ທອງ​ແດງ​ໃນ​ເຕົາ​ອົບ​ລະ​ລາຍ induction ໄດ້​?

You can choose graphite crucible for melting copper in ເຕົາເຜົາຜະຫຼິດໄຟຟ້າ, 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.