Ultrasonic Metal welder 1.Metal does not melt 2.Welding time is short 3.no need any assistant 4.Can be Custom mad Ultrasonic metal welder, from our factoryFeatures:1.Made of quality components2.Metal does not melt3.Welding time is short, no need any assistant 4.Custom made is welcome5.Easy maintenance6.The electric conductivity is good after welding; low or zero resistivity7.Welding a wire to an ...