... gantry crane, Gantry-type NC planer drilling machine, Automatic numerical control, large hot galvanizing line, Large assembly platform, Band ... iron drilling line, 315 4-column press machine, Automatic seam-suturing submerged-arc welding center, Straight flange welding ... tube intersection-cutting line, Large drilling machine, PP103 automatic connecting plate production line, Hydraulic NC 3-roll plate ...