Rubber Basketball

1.crude rubber,

2.refinedly made by the newest direction;  

3.super-airclosen butyl bladder,

4.and the bladder wound with 1,785 metres of high performance 3-ply

nylon thread,

5.making the ball keep good shape,

6.easily seized,

7.and stable rebound.  

8.durable against turning yellow,

9.durable against solaration,

10.durable cold,

11.hard to fade;  

12.particular trademake with face