... line, Automatic NC iron production line, 20B hydraulic plate shears, 3200t press machine, 250t trial assembly crane, ... machine, Shaping machine, Angle iron drilling line, 315 4-column press machine, Automatic seam-suturing submerged-arc welding ... Large drilling machine, PP103 automatic connecting plate production line, Hydraulic NC 3-roll plate bending machine.d)Certificate:Certificate for Qualification ...