The roll is compound centrifugal cast roll, it's outer high-Cr cast iron, inner graphite cast iron.

此辊外层为高铬铸铁，芯部为球墨铸铁，采用离心复合铸造。

youdao

The roll is compound centrifugal cast roll, it's outer high-Cr cast iron, inner graphite cast iron.

此辊外层为高铬铸铁，芯部为球墨铸铁，采用离心复合铸造。

youdao