For ductile, what is the nodularization method? In-mold? Sandwich? Tundish? Fischer Converter? Cored wire? Other?
对于球铁,球化方式是什么?
For ductile, what is the nodularization method? In-mold? Sandwich? Tundish? Fischer Converter? Cored wire? Other?
对于球铁,球化方式是什么?
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