73139735
Sep 2, 1977
Jul 31, 1979
LIGHTWEIGHT DRY INSULATING COMPOSITION, FOR MIXING WITH WATER, THAT WILL WITHSTAND A WORKING TEMPERATURE OF ABOUT 2400 DEGREE F FOR USE IN LINING DOORS AND WALLS OF CARTYPE ANNEALERS, HEAT TREATING FURNACES OF ALL TYPES AND KINDS, HEATING FURNACES
Rubber Goods