This paper explores the development and application of industrial collaborative dual-arm robots for flexible, small-batch production. Compared to single-arm robots, dual-arm systems offer greater dexterity and coordination, reducing fixture requirements and improving efficiency in complex assembly tasks. Since 2011, PMC has developed dual-arm robots featuring modular design, EtherCAT-based control, and integrated safety mechanisms. Demonstrations include automated tool transport systems integrated with AMRs. Looking ahead, industrial automation will increasingly focus on human-robot collaboration rather than full labor replacement.