include capacitance mullite, capacitance zircon mullite, capacitance magnesia-alumina spinel, capacitance zircon corundum,diamantane, and corundum-mullite products.

• 体系。产品有电熔莫来石、电熔锆莫来石、电熔镁铝尖晶石、电熔锆刚玉、白刚玉、刚玉-莫来石制品等。