... raw materials, or other pools in the cupola melting kiln (temperature 2000 °C below), with 50 atmospheres of pressure strong ... diameter, bulk density of 50 ~ 200 kg / m ^ 3, room temperature, thermal conductivity of 0.029 ~ 0.046 W / m open, following ... basalt, gabbro, dolomite, iron ore, bauxite as raw materials, high temperature melting, fibrosis, made of inorganic fibers. Slag wool is industrial ...