标题（Title） 一般不超过80个字符
Ductile Iron Society | DIS
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关键词（KeyWords）一般不超过100个字符
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描述（Description）一般不超过200个字符
Here at the Ductile Iron Society, our mission is to promote the interests of the ductile iron industry through advertising and education; by the collection and dissemination of information relative to the ductile iron foundry industry for the benefit of the public and the individual members of such society; for the development of new markets and uses for ductile iron; the establishment of standards and of research into the uses and processes of manufacture of ductile iron.
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