Organic fire blocking materials (fire clay, also known as rodent mud.): Its main feature is a strong adhesion, long-cured, plasticity, and metals, rubber, plastics, and other good adhesion, can be arbitrarily ground to block, increase or decrease, wire and cable replacement easy and convenient construction maintenance, and has good heat resistance, oil resistance, water .. Good blocking smoke fire retardant properties. In building pipelines and cables through hole fire blocking the project, and the organic blocking material, used in conjunction with a fire retardant fire retardant package, blocking smoke, dust, small animals and other functions. Fire Building Materials Quality Supervision and Inspection Center GA161-1997 standard test, the fire performance of the national fire-resistant standard level. Second, the scope: The sealing materials used in electric power, telecommunications, petrochemicals, metallurgy, chemical industry and high-rise, high-rise buildings, ships, hospitals, banks, stadiums, theaters, exhibition halls, steel mills and other places, wire and cable wind pipe, tubing, pipe and other material through the wall through (warehouse) wall of fire blocking various openings formed when the floor. When prevent fire and smoke spread through the flames.