Model Pw-450 packaging machine for lower film (1-50 pieces) mask, this machine is suitable for the packaging of "1-50 pieces" mask. If it is necessary to connect the mask production line, it can only be packaged in one piece (and the feeding conveying shall be belt type), if it is impossible to connect multiple pieces of packaging to the production line, it needs to manually put the mask (the feeding needs to be chain hook type), and connect the production line need "two sets" packaging machines (the two machines are in the opposite direction). The film used in this machine is BOPP film.