Products wood fibers (xylem fiber) is a natural renewable the timber after chemical treatment, mechanical processing of organic flocculent fiber material. Non-toxic, tasteless, non-polluting, non-radioactive. Fibers and cellulose are not the same as the main features are widely used in the field of concrete mortar, plaster products, wood pulp sponge, asphalt road, the coating to prevent cracking, improve water retention, and improve the stability of the production and construction of propriety, increase strength good results, enhanced surface adhesion. Its technical function is mainly: thixotropic, protection, absorption, the carrier, and a filler other instructions due to the capillary action of the fiber structure, the water inside the system is rapidly transferred to the surface of the slurry and the interface of the slurry inside the water evenly distributed reduce skinning phenomena. Deal of his intention to direct contact with manufacturers!