PYROSTEM

Fire resistant and passive fire protective articles and materials, namely, fire resistant composite panels for building construction purposes made of aramid, glass, carbon, wool, calcium silicate or ceramic fibers; fire protection materials, not of metal, for use in building, namely, fire and blast-resistant doors comprised primarily of reinforced cement and also including steel elements; fire protection wall panels, not of metal; fire-resistant cements, namely, mortars; non-metal fire-protection building materials, namely, boards and panels for construction