嘉环科技：公司主营业务包括网络建设服务等

Core Viewpoint - The company, Jiahuan Technology, has outlined its main business operations, which include various services related to network construction and management, as well as ICT education and training [2] Group 1: Business Operations - The company's primary business includes network construction services [2] - The company also provides network operation services [2] - Information communication system software debugging services are part of the company's offerings [2] - The company engages in intelligent services for government and enterprise sectors [2] - Network optimization services are included in the company's service portfolio [2] - ICT education and training services are also a key component of the company's business [2]