The origin of 729 brand: 729 brand was born under the great historical mission and national responsibility. Brand was born under the great historical mission and national responsibility. In the 197 1 World Table Tennis Championships, the China table tennis team lost two gold medals, the men's singles and the women's team, which had been waiting for four years, because of the backward equipment. Therefore, Premier Zhou issued the instruction of "Shaping the Perfect Table Tennis in China" and "Premier Zhou issued the World Table Tennis Champion". Under this historical background, the State Sports Commission and the Ministry of Chemical Industry assigned the Tianjin Rubber Industry Research Institute the task of developing rubber plates that can reach or exceed Japan's hoop balls. 1September, 972, with the unremitting efforts of scientific research experts, China's first viscous curved ball rubber with perfect combination of "elasticity" and "friction" was born in the expectation of Chinese people. Subsequently, Yun Enting switched to 729 anti-glue and won the 32nd World Table Tennis Championships in one fell swoop, which gave great encouragement to the Chinese people. In order to commemorate the special moment of successful trial production, the product was named "729".