佳士科技：公司开展焊接机器人系统集成业务的研发和市场推广，未从事设计和制造机器人本体的研发工作

Group 1 - The company is engaged in the research and market promotion of welding robot system integration but does not design or manufacture the robots themselves [2] - Currently, the revenue from the robot business constitutes a small proportion of the company's overall business scale [2] - The primary source of the company's income is from its welding equipment business [2]