Slide Gate Plate, Porous Plug, Tundish Nozzle manufacturer / supplier in China, offering Snref China Refractory Zirconia Tundish Nozzle for Tundish Mechanism, Snref China Refractory Zirconia Purge Housing Blocks for Steel Plant, Snref China Refractory Purgeblock Seating Well Block for Steel Plant and so on.