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我厂自1951年从事铸铁轧辊生产以来,至今已整整三十年了。三十年来,我们对铸铁轧辊生产中难度极大、报废数量最多的白口深和白口浅废品,进行了长期的、认真的分析、研究和
I plant since 1951 engaged in the production of cast iron roller, it has been a full three years. In the past 30 years, we have conducted long-term and serious analysis and research on the white waste and white waste products with the most extreme difficulty and the most scrapped cast iron rolls