Core Viewpoint - The company, Guolan Testing (301289.SZ), primarily focuses on inspection and testing services for products such as wires, cables, and optical fibers, while also developing capabilities in certification and electrochemical energy storage testing, but does not provide transformer product testing services [1]. Group 1 - The main products for inspection and testing include electric wires, cables, and optical fibers [1]. - The company is expanding its service capabilities to include new certification and electrochemical energy storage testing [1]. - The company has not initiated testing services for transformer products [1].