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split type roll
冶金	【连】 分节辊; 多节辊 (Caster segments are equipped with split type rolls, coupled with a tight roll pitch to prevent bulging and improve internal quality. 连铸机扇形段配备有密排辊距的分节辊，用于防止铸坯鼓肚，改善铸坯内部质量。)