| 摘要 |
<p>Metallothermic reaction mixture comprising a metal oxide, a metal less noble than the metal oxide and optionally other additives, with the individual components being present in the form of small particles where at least 20 percent by weight of the metal oxide is present in the form of spherical or at least approximately spherical particles having a particle size of from 0.1 to 3.0 mm.</p> |
