... . A prepositive stretch-bend-levelling unit is combined with a 23-roll leveler, in which case 4 segments of tension and ... effectively by reasonable distributing 2 segments of elongation. In addition, 23-roll leveler working with smaller elongation will be beneficial to ... TensionMax. 10000KgLine Elongation Rate0~3%3. Product: Product Flatness≤5I 23 roll Straightening Machine