1.It is structual of granule shape with many layers, non-penetrability ,good elastomer and dynamic design. 2.The bottom layer is made by mixing PU adhesive and granule for running track completely and is paved by the professional machine so it possess good evenness. 3.The layer is made out by scraping and filling the seams and then scattering the special granule. It's construction is combined with the craftwork of full polyurethane and sandwich system, so the products have the advantage of these two kinds. 4.It is suitable for professional gymnasium, sports ground , sports center and school ete. It is awarded the certificate of ISO-9001:2000 quality assurance system. ThePU plastic running track won the "Certificate of Sports Fisld Professional Grade Qualification"and passed the check of sports field material according to IAAF. Minimum order: 500 sqm Payment:T/T,L/C Delivery port: Shanghai China Delivery time: According to requirement