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receiving a shock will be subjected to very large loads. In addition, the test is also used to test the load with deviation. 1.2 destructive experiments destructive experiments to do so until the destruction of the deformation racket, and then test the ultimate force. Impact test is at the top of the top region for dynamic testing. When the experiment from the racket from the falls, and gradually increase the height until the racket is destroyed. Adoption racket destruction falling height to represent the impact strength of the racket at the top. Will be thrown on the ground racket or discouraged when athletes tend to force the ball often results in failure online racket face at the 3 o'clock and 9 o'clock, forcing manufacturers to design the experiment in such conditions. The racket in a similar circular frame of the pendulum, the ball around the handle rotation,Tennis ball manufacturers, Tennis ball wholesale, www.tennis-ball-manufacturers.com