1，YONEX
YONEX Unix Co., Ltd. was founded in Japan on 1946. Is a world-renowned professional badminton racket manufacturer, and is in a leading position in the fields of golf, tennis and badminton equipment. In order to meet different needs, Younex has developed a large number of models. His tennis racket has been loved by many famous stars, and his badminton products are often used in international competitions.
2. double happiness DHS
Founded in Shanghai, China 1959, Double Happiness is a well-known sporting goods brand in China, a well-known trademark in China and one of the few sports brands with international influence in China. Double happiness focuses on table tennis, badminton and weightlifting, and extends to three big balls, sports protective gear, sports shoes and clothing, small pieces of fitness equipment, various venue equipment and other sporting goods.
Badminton hardware requirements:
1, net column
Ground of departure ground: The height of the net post is 1.55m, and the net post must be firmly perpendicular to the ground, and placed at the midpoint of the sideline of doubles.
Step 2: Ball
Badminton should have 16 feathers fixed on the ball support, and the feathers are 64-70 mm long, but the length of each ball's feathers from the support surface to the tip of the feathers should be the same. The top of the feather is round, with a diameter of 58-68 mm, the diameter of the ball holder is 25-28 mm, the bottom is round, and the weight of the badminton is 4.6-5.5 g. The ball made of non-feather material is required to be made into a skirt shape, and the quality and performance should not exceed 10%.
3. Racket
The racket face of the ball should be flat, and the racket line should be woven across the frame or in other forms. The frame of the racket, including the handle, has a total length of no more than 680mm and a width of no more than 230mm. The racket frame is generally oval, the length of the racket frame is not more than 290 mm, the chord length is not more than 280 mm, and the width is not more than 220 mm. There is no weight limit for the racket. Racket is not allowed to have accessories and protrusions, and it is not allowed to change the specified racket style.
Reference to the above content: Baidu Encyclopedia -Younix