Six months. Official website's last query about Liaoji Bangbangji showed that joining Chongqing Liaoji Bangbangji could quickly start a successful business, and the investment return period is expected to be only 6 months. Liaoji bangbangji was founded in 1993. Its products are characterized by spicy and delicious flavor. It is a special food brand in Chengdu. Gradually developed into jambalaya series, spiced spicy pot-stewed vegetables series, and a series of product combinations with various tastes.