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第一重型机器厂经过两年多研制的φ658×1700mm离心复会高镍铬钼无限冷硬铸铁轧辊,经过在鞍山钢铁公司1700mm连轧精轧机组上试用,每支
The first heavy machinery factory after more than two years developed φ658 × 1700mm centrifugal recrystallization of high nickel chrome molybdenum unlimited chilled cast iron roller, after the Anshan Iron and Steel Company 1700mm strip rolling finishing trial, each