100% assurance that the addressee's information is consistent with the content of the letter Original seal sealing technology to ensure the letter paste firmly, strong confidentiality Put in paper, can output style letter in batch automatically, work efficiency is high Intelligent control panel, working state timely display, simple operation It can be compatible with all brand printers, realizing letter and duplex printing. Origami board micro adjustment function to ensure paper folding neatly, accurate Efficient, stable, low noise