Grayiron is one of the widely. used casting materials.
灰铸铁是目前广泛使用的铸造材料。
2
Based on production practice, the continuous casting process of high phosphorus grayiron bar sections and their structures as well as properties was investigated.
通过生产实践，探索了高磷连铸灰铸铁型材生产工艺及组织性能特点。
3
When saying these words, Yihe was looking irongray, eyes casting down.