方正科技(600601.SH)：目前公司从事的主要业务为PCB(核心业务）、融合通信（营收利润占比较小）

Core Viewpoint - The company primarily engages in PCB (Printed Circuit Board) as its core business, while its fusion communication segment contributes a smaller portion to revenue and profit [1]. Group 1 - The main business of the company is PCB [1] - The fusion communication segment has a relatively small share in terms of revenue and profit [1]