... covered with PVC coated ,then processed into ultrahigh strength geogrid. Mainly used in passenger railway lines, inter ... major objective. Advantages: High tensile strength at low elongation, high tear strength, and soil or gravel strong ... d.Special design requirements for reinforced abutment, abutment strength and improve overall performance. Technical data: SpecificationHNET200HNET250HNET300Elongation≤ ...