If the compacted treatment degree and chill capacity of chiller are not enough to obtain fine spheroidal graphite layer, the service life of glass mold is short.
如果蠕化处理程度和冷铁激冷能力无法形成球墨层者，使用效果较差。
If the compacted treatment degree and chill capacity of chiller are not enough to obtain fine spheroidal graphite layer, the service life of glass mold is short.
如果蠕化处理程度和冷铁激冷能力无法形成球墨层者，使用效果较差。
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