建发致新：公司本身不通过出售软件或者软件服务作为主要收入来源

Group 1 - The core revenue sources of the company are from the distribution, direct sales, and service businesses related to medical devices [1] - The company manages its operations through a self-developed "business platform system" for comprehensive process management [1] - The company does not primarily generate revenue from selling software or software services [1]