To put it comprehensively, it should be like this:

"Friendship·729" is a rubber trademark registered by the Rubber Research Institute in 1979. It is the text and streamers seen on the 729 rubber. The circular pattern

And "Friendship" was a trademark registered by Tianjin Racquet Factory for its rackets (but it has nothing to do with 729)

The Rubber Research Institute and Tianjin Racquet Factory had worked for this There was a dispute between two similar trademarks, but then the two parties jointly established "Tianjin 729 Sports Equipment Sales Co., Ltd.", which is the current manufacturer of 729 table tennis supplies, so now the trademarks "Yiyi·729" and "Yiyi" There is basically no distinction

And "729-08, 729-Origin" are also the names given by the 729 company for its different models of products