01 Professional High-perficiendi Refractoriis Coenum Microsphaerium Cenosphaerium
Cenospheres etiam microspheres appellati, sunt inertes, sphaericae concavae et fillers leves. Et densitatem habent humilem, corrosio-non resistentem, thermas stabilis, altas vires partiales, bonas insulantes, sonum solitarium, aquam humilem absorpti...