Web_20170926-_98A0388October 3, 2017/by Callum Ball cannon testing determines the pace of a ball before it impacts with the artificial grass and the speed loss after it rebounds from the surface https://surfaceperformance.com/wp-content/uploads/2016/05/logo.png 0 0 Callum https://surfaceperformance.com/wp-content/uploads/2016/05/logo.png Callum2017-10-03 09:22:472017-10-03 09:36:22Web_20170926-_98A0388