... ,with average density, hardness, strength of the highest uniformity ,products can be turning, milling, planing, grinding, drilling, cutting, carving, etc ... load-bearing areas For high air flow, mechanical damaging large areas of industrial furnace wall lining, door and roof seals ... -2000; ISO14001-2000,SGS;ROHS;SOSA Standard widely used in all kinds of kilns ceramic fiber board