西安饮食：西安饮食主营餐饮服务与食品工业

Group 1 - The core business of Xi'an Catering (000721) includes catering services and food manufacturing [1] - Xi'an Tourism (000610) primarily focuses on hotel operations and travel agency services [1] - There is a minor overlap in product procurement between Xi'an Catering and Xi'an Tourism, but it constitutes a small portion of their overall operations [1]