Slide Gate Plate, Porous Plug, Tundish Nozzle manufacturer / supplier in China, offering Snref Refractory Porous Purge Plug for Molten Steel Stirring in Ladle Refining, Refractory Alumina Castables for Kiln Furnace, Fast Replaceable CNC Tundish Nozzle System for Billet Slab Casting and so on.