O.S Seals

OuSai Seals was founded and continues to be headquartered in Hebei, China, and supply you comprehensive sealing solutions.

Starting with standard O-Rings, our product line also includes rubber to metal bonded seals, gaskets, molded products, and many other specific products for all kinds of sealing applications, e.g. Automotive, Medical, Military, Aerospace, Electronics, Power Generation, Hydraulics, and many other commercial industries.

Through our production, engineering, and prototype support we are expertly equipped to fulfill all of your sealing requirements.