... specially used for the H-beam flange distortion straightening,. H-beam production lineThis machine is specially used for the H-beam flange distortion straightening, ... long life using.H-beam machine, H-beam steel, H-beam welding line, H-shape steel,H-beam production machine, H-beam production line, H-beam straightening machine, H-beam fabrication line, spot welding machine for H-beam, steel structure ...