easy to use, saves time and cost low maintenance long life plastic welding gun The featuer of plastic welding machine 1, It is small and convenient for working,Operate flexible and convenient ,handle type design.2, Frequency is 35kHz with original Japanese NTK coverter.3, Automatic frequency tracking.4, Especially suitable for 1-15mm spot welding.5, Riveting,spot welding,pattern welding,dot ...