73298552
Feb 25, 1981
Feb 15, 1983
TYK CO. INC.
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Refractory Shapes Comprising Bricks, Sleeves, Nozzles-Namely, Fuel, Teeming, Casting and Ladle Nozzles, Pocket Block, Uphill Teeming Shapes for Bottom Pouring, Gate Tile and Plugs