For the production or refinement of rare and refractory metals the vacuum furnaces are of smaller volume, but for steels, large furnaces with capacity measured in metric tons and electron beam power in megawatts exist in industrialized countries.
The vacuum furnaces are of smaller volume. This is for the production or refinement of rare and refractory metals. Large furnaces with capacity exist in industrialized countries. This is for steels. This capacity is measured in metric tons in megawatts. This capacity is measured in electron beam power in megawatts.