four high driven mill

... four hearth burner 四膛炉 four high driven mill 四辊式轧机 four high reversing cold strip mill 四辊可逆式带材冷轧机 ...

金属材料工... ... foundery sand 铸造型砂 four high driven mill 支持辊传动的四辊式轧机 four high finishing mill 四辊精轧机 ...