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Niobium addition effect in molds at last cooling step on EN-GJL250 gray cast iron：Microstructural ch
【机 构】
：
LaboratoryofMaterialsTechnology,IonizedMediaDivision,NEElInstitute,DepartmentofMechanicalEngineering
【出 处】
：
中国铸造：英文版
【发表日期】
：
2018年3期
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