GD-P300 series are used to packing drinking straws in three sides sealing bag, printing function is available when using paper as packing material. Characteristics: 1) Having two colors printing device can be chosen.2) With automatic product counting function, product quantity may pre-set, once the pre-set value is reached. the machine will give an alarm. 3) Printing, feeding, and packing can complete in one processing. 4) Packing straw length is adjustable within a certain range.