■ Description : A machine designed to weld the longitudinal seams of angles, T-bars, and I-BON using double-sided tandem CO2 welding procedures. This welding machine can be used as a single independent unit or you can operate six units simultaneously by setting up them on a gantry. ■ Installed for : STX Shipbuilding Co., Ltd., Hyundai-Samho Heavy Industries Co., Ltd. and DSME Construction Co., Ltd.