Langfang City, Hebei Province. Su Jing Supangzi Mung Bean Cake belongs to Langfang Supangzi Mung Bean Cake Catering Management Co., Ltd., which is a popular chain snack brand in Beijing, Tianjin, Cangzhou, Langfang and other cities. Crispy fat mung bean cake has a rich brand product line and diverse tastes, which is suitable for consumers with different tastes and needs.