Sonkit metal O-ring seals are hollow or solid metal rings for static flange joints in vacuum and high-temperature systems. They sit in a groove and plastically load the flange faces. Jackets include stainless steel, Alloy 718, and copper alloys, with plating when the application needs it. Typical uses are semiconductor process tools, vacuum furnaces, and aerospace test hardware. Specify the groove and we will match the ring. Made in Shanghai. ISO 9001:2015.

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