Why should pre-masonry be carried out before the refractory brick construction of the carbon baking furnace? - ເຕົາເຜົາເຕົາຫຼອມໄຟ, ເຕົາອົບໃຫ້ຄວາມຮ້ອນເຕົາອົບ, ເຕົາອົບແຂງແຮງເຕົາເຜົາ, ເຕົາໄຟມ້ຽນ, ດິນຈີ່ທີ່ທົນທານຕໍ່, ໂຮງງານຜະລິດຂອງຈີນ, ຜູ້ສະ ໜອງ, ຜູ້ຜະລິດ, ຜູ້ຂາຍສົ່ງ.

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Why should pre-masonry be carried out before the refractory brick construction of the carbon baking furnace? - ເຕົາເຜົາເຕົາຫຼອມໄຟ, ເຕົາອົບໃຫ້ຄວາມຮ້ອນເຕົາອົບ, ເຕົາອົບແຂງແຮງເຕົາເຜົາ, ເຕົາໄຟມ້ຽນ, ດິນຈີ່ທີ່ທົນທານຕໍ່, ໂຮງງານຜະລິດຂອງຈີນ, ຜູ້ສະ ໜອງ, ຜູ້ຜະລິດ, ຜູ້ຂາຍສົ່ງ.