![Cleark Seals, Ltd. | Engineered Sealing Solutions Cleark Seals, Ltd. | Engineered Sealing Solutions](/images/clark_seals_banner.jpg)
Clark Seals Ningbo (CSN) is one of the most advanced seal factories in the world. Completed in 2012, CSN utilizes the very best manufacturing and testing equipment, the most extensive QC systems and the brightest seal engineers from around the globe.
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