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The properties and characteristics of ductile iron

Gray cast iron, including ordinary gray cast iron and cast iron two. Gray cast iron cheap, the most widely used. Ductile iron is a kind of high strength cast iron material developed in the 1950s. The casting performance is very good, the cost is low and the production is convenient. The composition of nodular cast iron is more stringent, and its carbon content is higher than that of gray cast iron , In order to facilitate the graphite ball.
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