4%Cr backup roll

backup roll bending

backup roll for cold mill

Backup roll of finishing mill

Backup Roll Shell

chamfer of backup roll

homogenized contact pressure between work roll backup rolls

Hot Rolling Backup Roll

Roll Bearing

bearing bearing of pile

roll bending roll

roll-on-roll-off

“Master Backup Slave” architecture

1+1 backup

active backup line

adaptive fault-tolerant backup

anti-disaster backup

auto backup power switching unit

Auto-backup

automatic backup