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1LlyfrCyhoeddwyd 1980“...National Association of Corrosion Engineers (U.S.)...”
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2LlyfrCyhoeddwyd 1983“...National Association of Corrosion Engineers (U.S.) Research Committee...”
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3LlyfrCyhoeddwyd 1984“...National Association of Corrosion Engineers (U.S.)...”
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4Trafodyn Cynhadledd LlyfrCyhoeddwyd 1971“...National Association of Corrosion Engineers (U.S.)...”
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5Trafodyn Cynhadledd LlyfrCyhoeddwyd 1989“...National Association of Corrosion Engineers (U.S.)...”