High frequency machine for welding PVC/PU related bag, blister, tory, ... can be finished at one time.(2)Anti-jamming: hunting frequency 27.12MHz,30.56MHz,40.68MHz, accord with international ... power output, it is much quicker and efficient . ModelPowerCurrentFrequency (MHZ) Upper polar plate(mm)Lower polar plate(mm)Push pedal ... /40.68250*380400*600500*630Samples that made by High frequency machine: