ຂໍ້ຄວນລະວັງ ສຳ ລັບ building refractory bricks ໃນເຕົາເຜົາຊີມັງ

It is absolutely not allowed to build large or small heads against refractory bricks. Even if only the size of a brick is reversed, the kiln lining must be resolutely removed and re-construction. Otherwise, major unprepared and personal accidents may occur.