837 long rubber is developed and produced by tianjin rubber industry research institute which has accumulated many years of experience , it has good toughness and a special stucture , besides having the features of long rubber , it can also be used for attack , to cause some spinning which easy to master , all the frist - class players in the world like it 837长胶是天津橡胶工业研究所经多年积累经验研究和生产，韧性好，结构特殊，除具备长胶的特性外，还可肜于攻球可制造一些旋转，易掌握，世界一流选手常使用该产品。
