72208753
Dec 23, 1964
Apr 12, 1966
REFRACTORY PRODUCTS MADE FROM FUSED SILICA-NAMELY, INDUCTION COIL LINERS, LADLE LINERS, CRUCIBLES FOR METAL AND GLASS MELTNG, TUN DISHES, BLAST FURNACE FACE PLATE INSERTS, AND REFRACTORY TUBES FOR BLAST FURNACE BLOW PIPE LINERS
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