Pipe wrap mat is used as basic materials for anti-corrosion wrapping on steel pipelines buried underground.It is characterized as high tensile strenth,good flexibility,uniform thickness,solvent resistance, moisture resistance and flame retardation. It is well compatible with impregnating bitumen and coal tar enamel. The pipelines wrapped by pipe wrap mat can widely improve capabilities against leakage and aggressive media in the environment and the cost for maintenance can be minimized significantly, so it is the excellent base materials for oil or gas pipes.