good tensile resistance. Besides。 The surface of wool is squamous so it is anti-corrosion and has good flexing endurance. 1 carpet wovened by nylon has good durability and acid and alkali resistance. Acrylic carpet is also resistant to acid and alkali. 2 propylene is synthetic fiber and is tubular, so it is cheap and easy to burn, but it can prevent the indoor air from contaning electricity and it is not easy to stick together. This property not only makes the wool carpet can adjust the indoor humidity. Propylene fibers are slightly less resilient than wool, so most of the carpet is wovened with wool, and the wool can absorb moisture. However, the price of wool carpet is high, and the following are the most suitable for homes when the indoor air is dry. Wool belongs to animal fiber and has good moisture absorption effect when mixing with linen and wovened into carpet, it is also waterproof. so it is suitable for living room and office that is stepped on frequently. now many families use propylene carpet, but it is easy polluted. 3 wool is heavier than it was before synthetic fibers was produced. the defect of nylon carpet is that it is easy to produce static, buut it is anti-corrosion and has respiratory effect and excellent wear resistance. wool is spiral curl. Wool is also easily dyed into various colors, but it has good moisturizing property and is not easy to burn, it also mildewproof. Therefore, it can prevent burning and it is mothproof and difficult to be polluted, it also has good elasticity and long service life. it feels like wool; it is more suitable in the corridor becaise of its poor heat resistance, but it is better than nylon. When the indoor is damp, it can release moisture, and the price is also lower than the wool carpet,