-A na-eme mgbanaka Pellet nke dị elu nke X46Cr13 (igwe anaghị agba nchara), ma ọ bụ 20CrMnTi (alloy steel).
-The pellet die nwere nnukwu mkpụrụ ma na-amịpụta nke mara mma nke ọma, nnukwu njupụta pellet.
-Mgbanaka na-anwụ anwụ nwere ezigbo ike nkwụsị, ezigbo corrosion na mmetụta nkwụsị.