华特达因：公司褪黑素颗粒产品曼乐静前期为意向预约，本周将在阿里和京东线上正式销售

Group 1 - The core point of the article is that Huate Dain (000915) is set to officially launch its melatonin granule product, Manlejing, for online sales on platforms like Alibaba and JD this week, following prior interest reservations [1] - The product will also gradually enter hospitals across various regions in China for sales [1]