Avainsanat: Nopeasti vaihdettava C/Z rullanmuovauskone , C Purlin rullanmuovauskone , Automatic C Purlin Roll Forming Machine , uloketyyppinen kaapelihyllyn rullanmuodostuskone , Special-Shape Welding Machine , Dual Workplace Side Hook Welding Machine , Single workplace side hook welding machine , Side Hook Automatic Welding Machine , High-Efficiency Double Deck Roll Forming Machine ,