Don't belong. They are two different manufacturers of table tennis equipment. Double happiness is an old table tennis equipment manufacturer in China and one of the few sports brands with international influence in China. Headquartered in Shanghai. "Kuang Biao Hao", "Kuang San" and other series of rubber sheets enjoy a high reputation in the table tennis world. Double happiness Samsung table tennis is often the designated ball in international competitions. Yinhe Company was established in 1986 and headquartered in Baoding City, Hebei Province. It is a joint-stock enterprise integrating development, design, processing, sales, consulting and training. The produced Yinhe soleplate is of high quality and low price, which is deeply loved by table tennis lovers.