Anti-jamming: hunting frequency 27.12MHZ/40.68MHZ, in accordance with International Standard and little jamming to outside equip Anti-jamming, defending strike sparks high-frequency plastic welderMainly used in: Sucking and molding packaging (including heat sealing /trimming for upper and lower blister, heat sealing/trimming for blister and cardboard), heat sealing for decoration inside car, ...