Credit: Unsplash/CC0 Public Domain Humanoid robots could guide travelers and manage crowds at some Chinese border crossings after Shenzhen-based UBTech Robotics said it had won a multimillion-dollar contract to supply its latest models for a trial project. The company said Tuesday it had struck the $37-million deal with a humanoid robotics testing center based near China's border with Vietnam. The project will use mainly the latest version of UBTech's "Wal