Бөөний хайлуулсан цахиурын элс 2-р зэрэглэлийн (мөн В …
I.Characteristics 1. Near zero thermal expansion, extremely low thermal conductivity. 2. Excellent thermal stability. 3. High purity (the SiO2 content is above 99.5%). 4. Chemical properties are stable. 5. Special machinery production, particle size close to circular, large packing density, ...