Three-proof fabric, commonly used in engineering, is a flame-retardant fabric made by coating glass fiber cloth. The material's advantages include fire resistance, water resistance, corrosion resistance, aging resistance, and durability. Rock wool, extracted from basalt and made of molten rock, is also an excellent fire-resistant material. With a thermal conductivity of 0.04-0.06, it offers good insulation properties. Products made from these two materials are primarily used in construction projects, such as concrete blankets, windbreaks, and door curtains. Although more expensive than non-woven rock wool blankets, they have superior reusability and a longer lifespan, making them a cost-effective choice.
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