... precision spot welding machine Feature:1, Performance characteristicsUP-23 is use the precise digital control which can pre ... on the power grid voltage automatically, tracking compensation. UP-23 have large power, simple operation, reliable welding.2, ... Airframe2. Control panel3. Electrode assembly4. Workbench5. Locknut6. Power switchUP-23 related size1,Shape size (length* width* high): 400*225*320mm ...