Mcmasters Koss Co.

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Mcmasters Koss Co. designs and manufactures custom sealing components for automotive and heavy‑duty truck applications. The product portfolio includes backup rings, quad rings and O‑rings, as well as diaphragms, pneumatic seals, molded shapes and boots. In addition, the company offers rubber elastomer testing and provides 3‑D printing services for thermoplastic components.

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