... according to the size of the shell. The turning-roll series includes the self-alignment.the adjustable,the movable,the ... according to the size of the shell,the adjustable turning-roll can be adjusted by lead screws and bolts grading ... , stator and rotator, nucleus rotator, anti-creep rotator, turning roll machine, petrochemical turning rolls, roll machine, painting rotator, rotator, tank welding roll