What grade of underwear do you want to add?

Does the subject want to ask, "What grade does underwear add?" First-line grade According to the query of Jiayi Shangpin official website, Jiayi Shangpin is an e-commerce brand under Huijie Group, a domestic listed underwear company. In 2022, the revenue of underwear industry ranked third, which is a first-line grade. Jiayi Shangpin Underwear belongs to Shenzhen Huijie Group Co., Ltd., and its brand was established in 2007. The company is headquartered in Guangdong.