... precise, easily, simplify running.2. NL-5557 sparking machine protect.3. Photoelectricity checks color system, confirm products ... , welding, cutting, recycle material full automatically.5. Machine useful:Medical treatment products look as: transfusion bags, blood ... welding and sealing pressure logo and blossom.6. Machine Parameter:ModelWS-8000TFDHF power8000WFrequency27.12MHzPower supply50/60HZ AC380V ...