... seam welder high efficiency)1,Big power,using four balance adjustment,horn-adjustment convenient2,Sheet metal welding nonrectangular columns,avoid fadeaway.3,automatic ... line guide bearing,precision trimming device performance talented.7,It can weld thermo plastic excluding Teflon.8, It has transient ... .10, It has a practical welding effect.11, It can be used in either direct or conductive weld.12, The ...