Plastic track, also known as all-weather track and track track, consists of polyurethane prepolymer, mixed polyether, waste tire rubber, EPDM rubber particles or polyurethane particles, pigments, additives and fillers. Plastic track has the characteristics of good flatness, high compressive strength, suitable hardness and elasticity, and stable physical properties, which is beneficial to the development of athletes' speed and skills, effectively improving sports performance and reducing the fall rate.
According to the construction structure and materials, plastic runways can be divided into prefabricated plastic runways, breathable plastic runways, composite plastic runways, mixed plastic runways and all-plastic self-adhesive plastic runways.
202 1 how to write the community activity plan
Community culture is an important means to create a good humanistic environment and improve the qualit