Established in 2002, Changzhou Tian Yi Engineering Fiber Co.,Ltd has been focused on the research and promotion of the anti-crack, anti-permeability technologies of concrete. Its product has been widely adopted in many national key projects, such as railway, highway, bridge, port, water conservancy and hydropower and nuclear power, which has been widely appraised.The company is one of the drafting and preparation units of national standard GB/ T2112007 Synthetic fiber applied in cement concrete and mortar. The company has accomplished various research works and has been prized as new high-tech enterprise as well as privately operated Jiangsu technological enterprise. Meanwhile, it has been confirmed as the national demonstration unit which possesses both quality and credit, since its product has been examined as qualified by CQQC and its anti-crack, anti-permeability technologies have won two national invention patents.