In 1971, the Company entered the glass fiber business when it established the subsidiary Central Glass Fiber Co., Ltd. Then, we established the subsidiary Central Glass Wool Co., Ltd. to produce glass wool in 1982.

At present, in our capacity of manufacturing and selling glass fiber as a high-tech, energy-saving raw material with outstanding properties, we are developing the business by responding to the constantly changing environment in the automotive, IT, residential and environmental fields.

Glass Fiber
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Glass fiber is a 6-24 micron thin filament-shaped fiber. It is made by ejecting molten glass, which is melted in a 1,600 degrees centigrade furnace(kiln), through platinum nozzles at 3,000m per minute.

Basic materials for various applications can be made by bundling these minute fibers together and processing them. For its excellent properties such as braking strength, electric insulation, heat resistance and chemical resistance, its applications range from houses, automobiles, vessels, to electronics devices such as computers. It is an essential material for modern society.

Glass Wool
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Glass wool is widely used as a heat-insulating and sound-absorbing material in automobiles and railway carriages.

It is a fire-resistant and non-combustible material made from glass cullet and other recycled material.