690390909012
HS 690390909012 - Other refractory ceramics made from magnesite (such as kilns, pot furnaces, capsules, stoppers, supports, casting pots, sleeves, tubes, pipes, and rods)
Other refractory ceramics made from magnesite (such as kilns, pot furnaces, capsules, stoppers, supports, casting pots, sleeves, tubes, pipes, and rods)
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