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Ringo supplies the Main Steam Isolation Valves (MSIV's) for the NPP's of Leningradska y Novovoronezh - Ringo Valves
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Fission Stories #117: Slow Valves at Shearon Harris and Slow Response by NRC - Union of Concerned Scientists
Effects of aging and service wear on main steam isolation valves and valve operators - Page 35 of 114 - UNT Digital Library
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