Ibyuma bita 304 ni ibikoresho by'icyuma bita fluffy bikoreshwa muri rusange. Ubushyuhe bwinshi ni bwiza, kandi ubushyuhe rusange bwo gukora ni munsi ya 650 °C, kandi bifite ubushyuhe bwiza bwo kurwanya fluffy ndetse no kurwanya fluffy hagati y'udusimba.
Igihe cyo kohereza ubutumwa: Werurwe-10-2022