73771562
Dec 27, 1988
Jul 18, 1989
FURNACE REFRACTORY MATERIAL, NAMELY NITRIDE BONDED SILICON BRICKS, THERMOCOUPLE PROTECTION TUBES, HEATER TUBES, TILES, POURING TUBES AND SPECIAL REFRACTORY SHAPES, FOR USE IN THE VARIOUS SEGMENTS OF THE FOUNDRY INDUSTRY
Nonmetallic Building Materials