转炉出钢口填充料是以电熔镁砂，合成镁砂为主要原料，DF—Z1牌号为镁砂质，DF—Z2牌号为镁质，可以根据用户的不同需要组织生产。
     Filling material for tapping hole of converter is made of electro-melted magnesite and synthetic magnesite.expresses MgO-C expresses Mg we are able to organize production in accordance with clients differentrequirements.