1. Deep penetration with high current and heat insulation of fusion slag (2-3 times manual welding)

and fast welding speed (3-12 times manual welding) for effective welding

2. The multi-electrode type for effectiveness and capability to weld thick plates

3. Due to deep penetration, narrow welding groove can be used and save welding material cost.

4. If proper welding conditions, welding materials and wires are used, the cost and mechanical

property of deposited metal can be improved and bead shape becomes even, therefore it is suitable

for high quality welding.

5. After welding, less deformation forms, therefore it is suitable for the mass production.