Core Viewpoint - The company, Lianjian Technology (301115.SZ), currently does not engage in fuel cell testing, focusing instead on automotive testing services through its subsidiary, Guanbiao Testing [1] Group 1: Company Services - The company's automotive testing services are primarily provided by its subsidiary, Guanbiao Testing [1] - Guanbiao Testing possesses comprehensive testing capabilities in various fields, including automotive materials, environmental reliability, electrical performance, and electromagnetic compatibility (EMC) [1] - The company has obtained third-party testing access qualifications from several automotive manufacturers, including General Motors, Volkswagen, NIO, Li Auto, JAC Motors, Geely, Leap Motor, and Chery [1]