To keep up with the market demand, weftless needled felt, geotextiles and woven compound geotextile are developed. The article compares the physical, mechanic and hydraulic features of these products.

• 根据市场需要；相继开发了无纬有基土工布、无基土工布及机织复合土工布；并对这三类产品的物理特性、力学特性及水力特性进行了测试比较.