Material yang direkomendasikan REFCAST V 640 ZR (40% ZrO2 low cement castable) REFCAST V 964 MZR (32% ZrO2 Ultra Low cement castable) REFKO TM 335 Z (35% ZrO2 mortar) Bisa lihat di website www.refko.de Refko products for Cement industry Refko products for Steel industry Refko products for Alumunium industry Refko products for Foundry industry Refko products for Waste - biomass incineration Refko products - Special products