It is outsourcing. Yunnan Lairui Technology Co., Ltd. was established on May 22, 2013 . Legal representative Zhou Jinyu, the company's scope of business includes: computer hardware and software development, application, transfer, maintenance, technical consulting and technical services; computer system integration and comprehensive wiring; computer network system engineering, building intelligence system engineering, security technology prevention engineering, electromechanical installation engineering, multimedia equipment, teaching equipment installation; construction labor subcontracting; domestic trade, supply and distribution of materials (according to the law to be approved projects, approved by the relevant departments before carrying out business activities).