1. 4-roll plate rolling machine 2. the most accurate machine in the market 3. easy to be operated 4. JXW12NC-32X1500 Prebending can be finished once feeding without making a U-turn. Plates can be bent into cylinder,arc and cone-shape work pieces.Strong functions of cylinder regulated and revision. Hydraulic system:Its hydraulic system is auxiliary driving system to drive bottom roller lifting and ...