The plastic geogrid is a square or rectangular polymer mesh which is formed by stretching, and may be uniaxially stretched or biaxially stretched according to the direction of stretching in the manufacture. It is punched on a extruded polymer sheet (mostly polypropylene or high density polyethylene) and then subjected to oriented stretching under heating. The unidirectionally stretched grid is stretched only along the length of the sheet, while the biaxially stretched grid is formed by continuing to stretch the unidirectionally stretched grid in a direction perpendicular to its length. Since the polymer of the plastic geogrid is realigned and oriented along with the heating extension process, the bonding force between the molecular chains is strengthened, and the strength is improved. Its elongation is only 10% to 15% of the original board. If an anti-aging material such as carbon black is added to the geogrid, it can have good durability such as acid resistance, alkali resistance, corrosion resistance and aging resistance. Two-way geogrid The two-way geogrid is formed by extruding, forming, and punching a polymer into a longitudinal and transverse direction. The material has great tensile strength in both the longitudinal and transverse directions. This structure also provides an ideal interlocking system for the more effective force bearing and diffusion in the soil, adapting to large-area permanent bearing. foundation One-way geogrid The unidirectional geogrid is extruded from a polymer into a thin plate and then punched into a regular pore network, and then longitudinally stretched. In this process, the polymer is oriented linearly and uniformly distributed, and the joint strength is high. Long elliptical mesh-like monolithic structure. This structure has a relatively high tensile strength and tensile modulus. Extrusion Pipe/Sheet/Plate/Cable Extrusion Pipe,Extrusion Sheet,Extrusion Cable Pearlescent Masterbatch Co., Ltd. , http://www.nsmasterbatch.com