Topchase Metallurgy Refractories Co.,Ltd built in 1994 With more than 20 years' efforts in metallurgy & Refractories which for Converter, casting furnace ladle and tundish refractory, metallurgy furnace burden, refractory insulating products, Tundish zirconic metering nozzle, Tundish nozzle, quick-change, replacement, Tundish Dry Vibration Mix, Desulfurizer, deoxidizer, recarburizer Dregs remover, and alloy metals materials etc. We have 6 production lines. OEM/ODM service are available.