XTY-380 envelope seal flap pre-daub wet gumming machine is applicable for daubing remoistened gumming on envelope seal flap, Our envelope moistened glue machine has the functions of loading paper without stop,adjusting the overlapping width by the stepless variator, daubing glue with rotary roller to ensure that the glue is evenly distributed, and drying the glue by hot wind to ensure the paper's flatness.