China A-share robot-concept stocks extend rally; Duolun Tech hits 4th limit-up

The breadth of the move — multiple names at limit-up rather than a single outlier — suggests this is a theme-wide rotation into robot exposure rather than an isolated stock story. That matters for A-share watchers because limit-up clusters often reflect momentum chasing that can outrun fundamentals, and the mix of pure robot plays with adjacent industrial names like bearings and machinery hints the market is bidding the whole supply chain. Whether the rally broadens further or narrows to a few leaders is the open question.