Iron Wire Rod Butt Welding Machine , Steel Wire Ring Butt Welding Machine DESCRIPTION Butt welding machine also called current welding machine or resistance welding machine. To utilize the contact resistance of the two ends of the connecting position to generate high temperature and high heat to achieve welding effect under the effect of pressure. According to the different welding method, butt welding machine can be divided to flash butt welding machine. copper and aluminum