Slide Gate Plate, Porous Plug, Tundish Nozzle manufacturer / supplier in China, offering CNC Tundish Refractory Quick Change Plate Nozzle with Zirconia Insert, Tundish Refractories Sliding Plate Nozzle with Zirconia Insert, CNC 120 Nozzle Changer System for Tundish Mechanism and so on.