12 Companies Leading the Way in athletics track

https://wiki-room.win/index.php?title=20_Up-and-Comers_to_Watch_in_the_athletics_track_Industry

Asphalt - Now you would think that asphalt is just as bad as concrete, but it is not. It's really about 8 times "softer". The genuine problem with operating on asphalt roadways is not the hardness, but the camber