The producing process of a kind of micro-chill suitable for suspension casting of heavy section ductile iron is briefly described.
简要介绍了一种适合于大断面球铁悬浮铸造用微型冷铁的制备工艺；
It has the effect keeping heavy section ductile iron casting from...
对于大断面球墨铸铁件，有防止球化不良和消除反白口的作用。
It has the effect keeping heavy section ductile iron casting from...
对于大断面球墨铸铁件，有防止球化不良和消除反白口的作用。
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