Advantages of “JIUZH ROLLER LEVELER” leveler machines: All leveling rollers adopt high quality bearing steel, finished quenching and tempering, precious machining, hard chrome plating, grinding etc. Surface hardness comes 58±2°(chrome layer thickness ≥0.05mm) All backup roller(support roller) adopt Japan export roller bearings. There are 2 columns or more columns backup rollers unifo
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