Product Description This series of welding machine is a new generation of welding machine, pneumatic pressurized and precision controlled using new electronic control devices, developed by our company on the basis of sufficiently researching the resistance-welding machine. Four parameters such as current-rising time, current value, current-sustaining time and pressurizing time can be steplessly adjusted, so as to make the welding spots to have controllability and uniformity. Lt can be used for the welding of various steel plates/sheets. Lt has the following advantages: Firmly welded; Little spatter; High welding speed and high working eddiciency.,