J&F earth grid are CE approved geosynthetic material and widely used to reinforce road, railway, airfield, slope, dam, [Detailed Product Description]J&F earth gridare CE approved geosynthetic material and widely used to reinforce road, railway, airfield, slope, dam, etc.J&F biaxial geogrid are also made of macromolecule polymer by the process of being stretched out, formed into lamella, punched ...