On Sino Haijie Sporting Goods Co. Ltd. - Shanghai, China

Badminton ball production, and materials. Materials employed by the researchers in the development of the Chinese Academy of Sciences. Its performance is much better than Taiwan MDF. Such as: high-temperature conditions are not weak (40 degrees centigrade when the Shaw Brothers Desk A62 MDF only 52-55 degrees), do not smash the first crack at the ball and so on.