"Seven Walnuts" are knockoffs. At present, there is only one brand of Yangyuan "Six Walnuts" on the market, which belongs to plant protein beverage. As a manufacturer of "six walnuts", Hebei Yangyuan Zhihui Beverage Co., Ltd. (renamed as "Hebei Yangyuan Zhihui Beverage Co., Ltd." at the beginning of 20 10) is the earliest enterprise in China to develop, produce and sell walnut drinks. As the drafting unit of China walnut milk beverage industry standard, he completed the unique position of walnut dew in the market at present.