... W11s series upper roller universal rolling machine can pre-bending and rolling to proceed the plate, with high rolling precision, no need to ... single person operation ,efficent safeconvenient6.rich curved shape,have rolling O type,U type,multistage R and other different ... 30003530300051027545W11S-40*25004032250050027545W11S-40*30004032300054029055 W11s Hydraulic Upper Roller Universal Rolling Machine