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Specific Notions
ℹ
like: fire-brick, refractory brick
VNEN
gạch chịu lửa
*
☊
fire-brick, refractory brick
*
☊
gạch chịu lửa * ☊ 
fire-brick, refractory brick * ☊ gạch chịu lửa * ☊ fire-brick, refractory brick * ☊