The two special cement coatings are applicable to sewage pipeline internal corrosion for ductile iron pipe, improve the ability to resist the erosion of acid components in sewage.
这两种特殊水泥涂层均适用于污水管道用球墨铸铁管的内防腐，提高抵抗污水中酸碱成分的侵蚀能力。
Chemical and petrochemical plants have long displayed a preference for ductile iron because of its ability to withstand shock loads, either thermal or physical.
由于球墨铸铁具有良好的耐冲撞装卸性能，及热学和物理性能，所以长期以来，化工厂和石化企业就特别爱好使用球墨铸铁。
Chemical and petrochemical plants have long displayed a preference for ductile iron because of its ability to withstand shock loads, either thermal or physical.
由于球墨铸铁具有良好的耐冲撞装卸性能，及热学和物理性能，所以长期以来，化工厂和石化企业就特别爱好使用球墨铸铁。
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