Slide Gate Plate, Porous Plug, Tundish Nozzle manufacturer / supplier in China, offering Snref Ls70 Advanced Refractory Sliding Gate Plate for Steel Molten Flow Control, Durable Zirconia Tundish Nozzle Inserts for Metallurgical Applications, Tundish Quck Changer Plate Nozzle for Steel Casting and so on.