National Engineering Products Incorporated

5110 Ridgefield Rd
Bethesda MD 20816

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<p>National Engineering Products Incorporated produces Copalite, a high temperature sealing compound used for sealing threads, flanges and other fittings. It is heat and chemically resistant. It is used in the Navy and other military branches for uses including steam turbines, boilers, pressure gas lines and refrigeration lines. Please call the number provided to learn more.&nbsp;</p>