恒而达：关于公司产品用途等具体经营信息请以公司在指定信息披露媒体刊载的公告为准

Group 1 - The company, Heng Er Da, stated that its products and services are widely used in fundamental industries of the national economy and key areas of advanced manufacturing [2] - Specific operational information regarding the company's product applications should be referenced from announcements published in designated information disclosure media [2]