About Us

At Sonkit, we strictly implement the ISO9001-2015 quality management system, and by implementing humanization and institutional management concepts, we make the quality of SONKIT metal seals can be fully controlled and traceable. 

The factory of Sonkit Industry is located in Shanghai Qingpu Industrial Park. Sonkit has a high-standard office and production environment; more than 80% of the processing and inspection equipment has achieved digital and intelligent control technology, especially in mass manufacturing and quality control, which has a leading advantage in the same industry.

Sonkit metal seal rings are widely used in nuclear power, nuclear equipment, military industry, mold hot runners, high temperature sensors, chemicals, chemical fibers, semiconductor vacuum equipment, gas turbines, and pressure pipeline equipment, etc.