康斯特：公司核心业务的校准测试仪表产品占总营收的95%

Group 1 - The core business of the company, calibration testing instruments, accounts for 95% of total revenue [2] - The primary application scenarios for these products are in laboratories, quality inspection, and measurement departments for verification, calibration, and testing [2] - The company is actively expanding into emerging high-end manufacturing industries, such as global civil aviation, leveraging its product strength and marketing channels [2]